In a large random data set following normal distribution, the ratio (%) of number of data points which are in the range of (mean ± standard deviation) to the total number of data points, is (A) ~ 50% (B) ~ 67% (C) ~ 97% (D) ~ 47%

In a large random data set following normal distribution, the ratio (%) of number of data points which are in the range of (mean ± standard deviation) to the total number of data points, is (A) ~ 50% (B) ~ 67% (C) ~ 97% (D) ~ 47%
by

1 Answer

Answer :

Answer: B
by

Related questions

What is the fraction of employees getting salary less than the average salary of all the employees? (A) 47% (B) 45% (C) 50% (D) 55%

Description : What is the fraction of employees getting salary less than the average salary of all the employees? (A) 47% (B) 45% (C) 50% (D) 55%

Last Answer : Answer: D

The results for accuracy studies in Analytical Method Validation, are expressed in terms of? A. % Relative error B. Correlation coefficient C. Relative standard deviation D. Mean

Description : The results for accuracy studies in Analytical Method Validation, are expressed in terms of? A. % Relative error B. Correlation coefficient C. Relative standard deviation D. Mean

Last Answer : A. % Relative error

A national random sample of 20 ACT scores from 2010 is listed below. Calculate the sample mean and standard deviation. 29, 26, 13, 23, 23, 25, 17, 22, 17, 19, 12, 26, 30, 30, 18, 14, 12, 26, 17, 18 a. 20.50, 5.79 b. 20.50, 5.94 c. 20.85, 5.79 d. 20.85, 5.94

Description : A national random sample of 20 ACT scores from 2010 is listed below. Calculate the sample mean and standard deviation. 29, 26, 13, 23, 23, 25, 17, 22, 17, 19, 12, 26, 30, 30, 18, 14, 12, 26, 17, 18 a. 20.50, 5.79 b. 20.50, 5.94 c. 20.85, 5.79 d. 20.85, 5.94

Last Answer : Katie earned 84,92,84,75 and 70 on her first 5 tests. What is the minimum grade Katie needs to earn on the next test to have a mean of 84?

If the expected time of completion of a project is 60 weeks with a standard deviation of 5 weeks, the probability of completing the project in 50 weeks and 65 weeks respectively will be (A) 2.3% and 84.1% (B) 97.7% and 84.1% (C) 97.7 % and 15.9% (D) 15.9% and 97.7%

Description : If the expected time of completion of a project is 60 weeks with a standard deviation of 5 weeks, the probability of completing the project in 50 weeks and 65 weeks respectively will be (A) 2.3% and 84.1% (B) 97.7% and 84.1% (C) 97.7 % and 15.9% (D) 15.9% and 97.7%

Last Answer : (A) 2.3% and 84.1%

If the average compressive strength is 4000 kg/cm2 and standard deviation is 500, the co-efficient of variation is (A) 10 % (B) 12.5 % (C) 15 % (D) 18.5%

Description : If the average compressive strength is 4000 kg/cm2 and standard deviation is 500, the co-efficient of variation is (A) 10 % (B) 12.5 % (C) 15 % (D) 18.5%

Last Answer : Answer: Option B

Percentage of Earth surface which is covered by oceans and seas is A. 50% B. 65% C. 85% D. 97%

Description : Percentage of Earth surface which is covered by oceans and seas is A. 50% B. 65% C. 85% D. 97%

Last Answer : D. 97%

Percentage of Earth surface which is covered by oceans and seas is A. 50% B. 65% C. 85% D. 97%

Description : Percentage of Earth surface which is covered by oceans and seas is A. 50% B. 65% C. 85% D. 97%

Last Answer : D. 97%

Percentage of Earth surface which is covered by oceans and seas is A. 50% B. 65% C. 85% D. 97%

Description : Percentage of Earth surface which is covered by oceans and seas is A. 50% B. 65% C. 85% D. 97%

Last Answer : D. 97%

Percentage of Earth surface which is covered by oceans and seas is A. 50% B. 65% C. 85% D. 97%

Description : Percentage of Earth surface which is covered by oceans and seas is A. 50% B. 65% C. 85% D. 97%

Last Answer : D. 97%

The frequency distribution of a research data which is symmetrical in shape similar to a normal distribution but center peak is much higher, is (A) Skewed (B) Mesokurtic (C) Leptokurtic (D) Platykurtic

Description : The frequency distribution of a research data which is symmetrical in shape similar to a normal distribution but center peak is much higher, is (A) Skewed (B) Mesokurtic (C) Leptokurtic (D) Platykurtic

Last Answer : (C) Leptokurtic

The distribution of heights of American women aged 18 to 24 is approximately normally distributed with a mean of 65.5 inches and standard deviation of 2.5 inches. Calculate the z-score for a woman six feet tall. a. 2.60 b. 4.11 c. 1.04 d. 1.33

Description : The distribution of heights of American women aged 18 to 24 is approximately normally distributed with a mean of 65.5 inches and standard deviation of 2.5 inches. Calculate the z-score for a woman six feet tall. a. 2.60 b. 4.11 c. 1.04 d. 1.33

Last Answer : a. 2.60

Which of the following statement(s) is/are true concerning the results of a National Institute of Health Consensus Conference on venous thrombosis and low-dose heparin prophylaxis? a. The odds of developing deep venous thrombosis with low-dose heparin prophylaxis decreases by 67% b. The risk of pulmonary embolism is decreased by almost 50% c. There is no increase in mortality from other causes found in patients treated with low-dose heparin d. There was no difference in the incidence of bleeding complications

Description : Which of the following statement(s) is/are true concerning the results of a National Institute of Health Consensus Conference on venous thrombosis and low-dose heparin prophylaxis? a. The odds of ... treated with low-dose heparin d. There was no difference in the incidence of bleeding complications

Last Answer : Answer: a, b, c In a metaanalysis of 70 randomized trials in 16,000 patients comparing low-dose heparin prophylaxis with standard therapy, the odds of developing deep venous thrombosis ... Similarly, the effectiveness of prophylaxis was not influenced by either two or three times daily dosage

A golden rule for the procurement of construction stones, suggests (A) 100% at the site (B) 67% at the site and 33% under procurement (C) 50% at the site and 50% under procurement (D) 33% at the site and 67% under procurement

Description : A golden rule for the procurement of construction stones, suggests (A) 100% at the site (B) 67% at the site and 33% under procurement (C) 50% at the site and 50% under procurement (D) 33% at the site and 67% under procurement

Last Answer : (B) 67% at the site and 33% under procurement

Assuming no additional product promotion, what percent of customers, reached through last year’s marketing campaign will carry over into the current year? a. 33% b. 50% c. 67% d. 0% e. None of the above

Description : Assuming no additional product promotion, what percent of customers, reached through last year’s marketing campaign will carry over into the current year? a. 33% b. 50% c. 67% d. 0% e. None of the above

Last Answer : c. 67%

What is the standard deviation of the following data set rounded to the nearest tenth 52.1 45.5 51 48.8 43.6?

Description : What is the standard deviation of the following data set rounded to the nearest tenth 52.1 45.5 51 48.8 43.6?

Last Answer : Feel Free to Answer

Which one of the following methods is best suited for mapping the distribution of different crops as provided in the standard classification of crops in India? (A) Pie diagram (B) Chorochromatic technique (C) Isopleth technique (D) Dot method

Description : Which one of the following methods is best suited for mapping the distribution of different crops as provided in the standard classification of crops in India? (A) Pie diagram (B) Chorochromatic technique (C) Isopleth technique (D) Dot method

Last Answer : (B) Chorochromatic technique

1. How can a Change in distribution of powers between the Centre and the States be done? 2. Which acid is used to remove ink and rust stains and cloth? 3. Which forms the largest share of deficit in Govt. of India budget? 4. 97% of the atmosphere lies with in howmany kilometers of the surface of the earth? 5. By virtue of which Act, dyarchy was introduced in India?

Description : 1. How can a Change in distribution of powers between the Centre and the States be done? 2. Which acid is used to remove ink and rust stains and cloth? 3. Which forms the largest share of deficit ... ? 19. Which states is the leading producer of tea? 20. Who was a contemporary of Chinghiz Khan?

Last Answer : Answer : 1. Amending the Constitution 2. Oxalic acid 3. Fiscal deficit 4. 5 km 5. Government of India Act, 1919 6. Ben Okri 7. Nucleolus 8. 73rd 9. East Africa 10. Lichhavi 11. By observing ... Indus and Jhelum 16. Cytochromes 17. From the date of its first meeting 18. Silver 19. Assam 20. Iltutmish

Range, and Standard Deviation?

Description : Range, and Standard Deviation?

Last Answer : http://en.wikipedia.org/wiki/Range_%28statistics%29 http://en.wikipedia.org/wiki/Arithmetic_mean http://en.wikipedia.org/wiki/Standard_deviation#Basic_example_of_a_population_standard_deviation

What type of measures are the range and the standard deviation?

Description : What type of measures are the range and the standard deviation?

Last Answer : They are measures of the spread of data.

Which measures the systematic or non -systematic risk of a security ? a. Beta c. standard deviation b. Variance d. Range

Description : Which measures the systematic or non -systematic risk of a security ? a. Beta c. standard deviation b. Variance d. Range

Last Answer : Answer :a

Compare narrow band FM with wide-band FM w.r.t. following points. (i) Modulation index (ii) Maximum deviation (iii)Range of modulating frequency (iv)Application

Description : Compare narrow band FM with wide-band FM w.r.t. following points. (i) Modulation index (ii) Maximum deviation (iii)Range of modulating frequency (iv)Application

Last Answer : Sr. No Parameters Narrow band FM Wide band FM 1 Modulation index Less than or slightly greater than 1 Greater than 1  2 Maximum deviation ... like police wireless, ambulance etc. Entertainment broadcasting can be used for high quality music transmission 

If worker takes 15 min as a standard time for as job in which total allowance is 20% of normal time. If the rating of the worker is 100 %. Find the actual time required by the worker

Description : If worker takes 15 min as a standard time for as job in which total allowance is 20% of normal time. If the rating of the worker is 100 %. Find the actual time required by the worker

Last Answer : Standard Time (ST) = 15 Minutes Rating Factor (RF) = 100 % Allowance = 20 % of Normal Time (NT) Standard Time (ST) = Normal Time (NT) + Allowance 15 = NT + (20/100) NT 15 = ... (Actual) Time Actual (Observed) Time (AT) required by the worker to complete the job is 12.5 Minutes.

4. A haemophilic man marries a normal homozygous woman. What is the probability that their son will be haemophilic a) 100% b) 75 % c) 50% d) 0%

Description : 4. A haemophilic man marries a normal homozygous woman. What is the probability that their son will be haemophilic a) 100% b) 75 % c) 50% d) 0%

Last Answer : d) 0%

Arjun scored 230 runs which included 10 boundaries and 15 sixes. What percentage of his total score did he make by running between the wickets? a) 44.12% b) 45.35% c) 43.47% d) 42%

Description : Arjun scored 230 runs which included 10 boundaries and 15 sixes. What percentage of his total score did he make by running between the wickets? a) 44.12% b) 45.35% c) 43.47% d) 42%

Last Answer : c) 43.47%

method requires the following data pertaining annual flood series (i) Mean value (ii) Standard deviation (iii) Length of record (iv) Coefficient of skew The correct answer is (A) (i) and (ii) (B) (i),(i) and (iii) (C) (i), (ii) and (iv) (D) (i), (ii), (iii) and (iv)

Description : method requires the following data pertaining annual flood series (i) Mean value (ii) Standard deviation (iii) Length of record (iv) Coefficient of skew The correct answer is (A) (i) and (ii) (B) (i),(i) and (iii) (C) (i), (ii) and (iv) (D) (i), (ii), (iii) and (iv)

Last Answer : Answer: Option B

Three audio waves with 100,200 and 300 volts amplitude respectively, simultaneously modulate a 450 volts carrier. What is the total percent of modulation of the AM wave? A. 69 % B. 115.5 % C. 50% D. 83%

Description : Three audio waves with 100,200 and 300 volts amplitude respectively, simultaneously modulate a 450 volts carrier. What is the total percent of modulation of the AM wave? A. 69 % B. 115.5 % C. 50% D. 83%

Last Answer : D. 83%

The inland fish production is almost how much % of total fish production in India (a) Over 50% (b) 30% (c) 20% (d) 40%

Description : The inland fish production is almost how much % of total fish production in India (a) Over 50% (b) 30% (c) 20% (d) 40%

Last Answer : (a) Over 50%

_________ is a measure of risk-adjusted return a. Simple return b. Standard Deviation c. Beta d. Sharpe Ratio ANS: Sharpe Ratio

Description : _________ is a measure of risk-adjusted return a. Simple return b. Standard Deviation c. Beta d. Sharpe Ratio ANS: Sharpe Ratio

Last Answer : ANS: Sharpe Ratio

The term “TRP” is associated with TV shows stands for (A) Total Rating Points (B) Time Rating Points (C) Thematic Rating Points (D) Television Rating Points

Description : The term “TRP” is associated with TV shows stands for (A) Total Rating Points (B) Time Rating Points (C) Thematic Rating Points (D) Television Rating Points

Last Answer : (D) Television Rating Points

In the Empirical Rule of data will fall in with two standard deviation.?

Description : In the Empirical Rule of data will fall in with two standard deviation.?

Last Answer : Approx 95% of the observations.

In the Empirical Rule of data will fall in with two standard deviation.?

Description : In the Empirical Rule of data will fall in with two standard deviation.?

Last Answer : Approx 95% of the observations.

If the radius of a circle is increased by 50%, the perimeter of the circle will increase by (A) 20% (B) 30% (C) 40% (D) 50%

Description : If the radius of a circle is increased by 50%, the perimeter of the circle will increase by (A) 20% (B) 30% (C) 40% (D) 50%

Last Answer : Answer: D

The enrolment in higher education in India is contributed both by Formal System of Education and by System of Distance Education. Distance education contributes (A) 50% of formal system (B) 25% of formal system (C) 10% of the formal system (D) Distance education system’s contribution is not taken into account while considering the figures of enrolment in higher education

Description : The enrolment in higher education in India is contributed both by Formal System of Education and by System of Distance Education. Distance education contributes (A) 50% of formal system (B) ... 's contribution is not taken into account while considering the figures of enrolment in higher education

Last Answer : Answer: B Education in India is provided by the public sector as well as the private sector, with control and funding coming from three levels: central, state, and local. Under various articles ... 6% enrollment in higher education is actually 60% of those who are eligible to join higher education. 

Kannan sells laddu at Rs.30 per kg. A laddu is made up of flour and sugar in the ratio of 5:3. The ratio of price of sugar and flour is 7:3 (per kg). Thus, he earns 67% profit. What is the cost price of sugar?

Description : Kannan sells laddu at Rs.30 per kg. A laddu is made up of flour and sugar in the ratio of 5:3. The ratio of price of sugar and flour is 7:3 (per kg). Thus, he earns 67% profit. What is the cost price of sugar?

Last Answer : Since, the profit is 67, so the selling price will be 167% of the cost price ∴Ratio of selling price to cost price will be 5:3 ∴Cost price of laddu =30*3/5 = 18 Let cost of flour and sugar is 3s and 7s respectively ... )/8=18 15s+21s=144 36s=144 s = 4 ∴Price of sugar = 7s = 7 4 = Rs. 28

If the side of the square increases by 40%, then the area of the square increases by (A) 60 % (B) 40 % (C) 196 % (D) 96 %

Description : If the side of the square increases by 40%, then the area of the square increases by (A) 60 % (B) 40 % (C) 196 % (D) 96 %

Last Answer : Answer: D

When an error of 1%is made in the length and breadth of a rectangle, the percentage error (%) in the area of a rectangle will be (A) 0 (B) 1 (C) 2 (D) 4

Description : When an error of 1%is made in the length and breadth of a rectangle, the percentage error (%) in the area of a rectangle will be (A) 0 (B) 1 (C) 2 (D) 4

Last Answer : Answer: B Suppose length is 10 and bredth is 10 then area is 100, 1 % error then 9.9 *9.9 = 98.01. Hence 2 % error will be there.

What is the mean absolute deviation of the data set 2 3 5 7 8 8 9?

Description : What is the mean absolute deviation of the data set 2 3 5 7 8 8 9?

Last Answer : Feel Free to Answer

Research is not considered ethical if it (A) tries to prove a particular point. (B) does not ensure privacy and anonymity of the respondent. (C) does not investigate the data scientifically. (D) is not of a very high standard.

Description : Research is not considered ethical if it (A) tries to prove a particular point. (B) does not ensure privacy and anonymity of the respondent. (C) does not investigate the data scientifically. (D) is not of a very high standard.

Last Answer : (B) does not ensure privacy and anonymity of the respondent.

If the Sales is Rs.100 crores, EBIT is Rs.30 crores, PAT is Rs.20 crores and Total Assets is Rs.300 crores, then the return on assets (ROA) is given by A. 6.67% B. 10% C. 33.33% D. 23.33% E. 26.67%

Description : If the Sales is Rs.100 crores, EBIT is Rs.30 crores, PAT is Rs.20 crores and Total Assets is Rs.300 crores, then the return on assets (ROA) is given by A. 6.67% B. 10% C. 33.33% D. 23.33% E. 26.67%

Last Answer : B. 10%

Difference at any instant between the value of the controlled variable and the set point is called the (A) Deviation (B) Derivative time (C) Error ratio (D) Differential gap

Description : Difference at any instant between the value of the controlled variable and the set point is called the (A) Deviation (B) Derivative time (C) Error ratio (D) Differential gap

Last Answer : Option A

Random Access Memory (RAM), a form of computer storage, is a ............. memory. (A) Non-volatile (B) Volatile (C) Permanent (D) Secondary

Description : Random Access Memory (RAM), a form of computer storage, is a ............. memory. (A) Non-volatile (B) Volatile (C) Permanent (D) Secondary

Last Answer : Answer: B

.............. is a type of memory circuitry that holds the computer’s start-up routine. (A) RIM (Read Initial Memory) (B) RAM (Random Access Memory) (C) ROM (Read Only Memory) (D) Cache Memory

Description : .............. is a type of memory circuitry that holds the computer’s start-up routine. (A) RIM (Read Initial Memory) (B) RAM (Random Access Memory) (C) ROM (Read Only Memory) (D) Cache Memory 

Last Answer : (C) ROM (Read Only Memory) 

Which one of the following is a non probability sampling? (A) Simple Random (B) Purposive (C) Systematic (D) Stratified

Description : Which one of the following is a non probability sampling? (A) Simple Random (B) Purposive (C) Systematic (D) Stratified

Last Answer : (B) Purposive

Which one of the following is a nonprobability sampling method ? (A) Simple Random Sampling (B) Stratified Sampling (C) Cluster Sampling (D) Quota Sampling

Description : Which one of the following is a nonprobability sampling method ? (A) Simple Random Sampling (B) Stratified Sampling (C) Cluster Sampling (D) Quota Sampling

Last Answer : (D) Quota Sampling

Which of the following sampling methods is not based on probability? (A) Simple Random Sampling (B) Stratified Sampling (C) Quota Sampling (D) Cluster Sampling

Description : Which of the following sampling methods is not based on probability? (A) Simple Random Sampling (B) Stratified Sampling (C) Quota Sampling (D) Cluster Sampling

Last Answer : (C) Quota Sampling

Which of the following sampling method is appropriate to study the prevalence of AIDS amongst male and female in India in 1976, 1986, 1996 and 2006 ? (A) Cluster sampling (B) Systematic sampling (C) Quota sampling (D) Stratified random sampling

Description : Which of the following sampling method is appropriate to study the prevalence of AIDS amongst male and female in India in 1976, 1986, 1996 and 2006 ? (A) Cluster sampling (B) Systematic sampling (C) Quota sampling (D) Stratified random sampling

Last Answer :  (B) Systematic sampling

Which one is called non-probability sampling? (A) Cluster sampling (B) Quota sampling (C) Systematic sampling (D) Stratified random sampling

Description : Which one is called non-probability sampling? (A) Cluster sampling (B) Quota sampling (C) Systematic sampling (D) Stratified random sampling

Last Answer : Explanation: No n-probability sampling is a sampling technique where the samples are gathered in a process that does not give all the individuals in the population equal chances of being selected. ... po pulation with respect to known characteristics, traits or focused ph enomenon. Answer: B  

RAM means: (A) Random Access Memory (B) Rigid Access Memory (C) Rapid Access Memory (D) Revolving Access Memory

Description : RAM means: (A) Random Access Memory (B) Rigid Access Memory (C) Rapid Access Memory (D) Revolving Access Memory

Last Answer : (A) Random Access Memory

Probability sampling implies: (A) Stratified Random Sampling (B) Systematic Random Sampling (C) Simple Random Sampling (D) All of the above

Description : Probability sampling implies: (A) Stratified Random Sampling (B) Systematic Random Sampling (C) Simple Random Sampling (D) All of the above

Last Answer : (D) All of the above