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

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

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%

Description : 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%

Last Answer : Answer: B

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

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

If N is deviation angle the length L of a parabolic vertical curve for overtaking sight distance S, is (A) NS²/9.6 if L > S (B) NS²/9.6 if L < S (C) 2S - 9.6/N if L < S (D) Both (A) and (C)

Description : If N is deviation angle the length L of a parabolic vertical curve for overtaking sight distance S, is (A) NS²/9.6 if L > S (B) NS²/9.6 if L < S (C) 2S - 9.6/N if L < S (D) Both (A) and (C)

Last Answer : Answer: Option D

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%

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.

A glass prism has a refracting angle of `60^@`. The angle of minimum deviation is `40^@`. If velocity of light in vacuum is `3 xx 10^8 m//s`. Calculat

Description : A glass prism has a refracting angle of `60^@`. The angle of minimum deviation is `40^@`. If velocity of light in vacuum is `3 xx 10^8 m//s`. Calculat

Last Answer : A glass prism has a refracting angle of `60^@`. The angle of minimum deviation is `40^@`. If ... of light in glass. What is the angle of incidence ?

Political unrest, budget overruns, size and complexity of the project Answer: B (8)Decision trees are best used for : 1. Determining the interaction of the amount at stake and the expected value 2. Association of the probabilities with the risk events 3. An illustration of how to see the interactions between decisions and the associated events 4. A flow chart which determines the standard deviation of the risk event

Description : Political unrest, budget overruns, size and complexity of the project  Answer: B  (8)Decision trees are best used for : 1. Determining the interaction of the amount at stake and the expected ... and the associated events  4. A flow chart which determines the standard deviation of the risk event

Last Answer : 3. An illustration of how to see the interactions between decisions and the associated events

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

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?

I have some matchsticks set up like this: I + XI = X. If you do not know Roman numerals, here is a quick starter: I=1 II=2 III=3 IV=4 V=5 VI=6 VII=7 VIII=8 IX=9 X=10 XI=11 XII=12 XIII=13 XIV=14 XV=15...... Of course, I + XI = X is wrong. You are told to move the minimum number of matchsticks to make the question correct. So, how many do you have to move? -Riddles

Description : I have some matchsticks set up like this: I + XI = X. If you do not know Roman numerals, here is a quick starter: I=1 II=2 III=3 IV=4 V=5 VI=6 VII=7 VIII=8 IX=9 X=10 XI=11 ... are told to move the minimum number of matchsticks to make the question correct. So, how many do you have to move? -Riddles

Last Answer : Most people would get to one move at the least, but the real answer is zero moves. If you rotate the whole question around 180 degrees, it will display this: X = IX + I

What does standard deviation result mean?

Description : What does standard deviation result mean?

Last Answer : It shows you how dispersed the results are.

Standard deviation and mean?

Description : Standard deviation and mean?

Last Answer : It is very handy to just memorize the 68 – 95 – 99.7 rule. It means 68% of the population is within +/-1 SD, 95% are within 2 SD and 99.7 are within 3 SD.

How do I find the mean and standard deviation from a frequency table?

Description : How do I find the mean and standard deviation from a frequency table?

Last Answer : Do you have a graphing calculator?

How to compute mean and standard deviation for each column of a pandas dataframe -Web-Development

Description : How to compute mean and standard deviation for each column of a pandas dataframe -Web-Development

Last Answer : answer:

Is The variance is the mean of the sum of the squared deviation between each observation and the median?

Description : Is The variance is the mean of the sum of the squared deviation between each observation and the median?

Last Answer : Feel Free to Answer

What is the standard deviation and what is the probability that a student scored higher than 322 if the mean test score is 312 and 16 percent of the scores are under 307?

Description : What is the standard deviation and what is the probability that a student scored higher than 322 if the mean test score is 312 and 16 percent of the scores are under 307?

Last Answer : Assuming a normal distribution:If 16% are less than 307, then 84% are greater than 307.Using single tailed normal tables we want the z value whichgives 84%-50% = 34% = 0.34 to the left of the mean; this is z ≈ ... 1 - 0.977 = 0.023 = 2.3 % are greater than 322→ probability greater than 322 is 2.3%

How many of scores will be within 1 standard deviation of the population mean?

Description : How many of scores will be within 1 standard deviation of the population mean?

Last Answer : Assuming a normal distribution 68 % of the data samples will bewith 1 standard deviation of the mean.

The average of the sum of squares of the deviation about mean

Description : The average of the sum of squares of the deviation about mean

Last Answer : Ans. Variance

The square of standard deviation is (A) Coefficient of variance (B) Standard deviation (C)Variance (D) Mean deviation

Description : The square of standard deviation is (A) Coefficient of variance (B) Standard deviation (C)Variance (D) Mean deviation

Last Answer : (C)Variance

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

Provided that the ACT is reasonably normally distributed with a mean of 18 and standard deviation of 6, determine the proportion of students with a 33 or higher. a. 0.0062 b. 0.0109 c. 0.0124 d. 0.0217

Description : Provided that the ACT is reasonably normally distributed with a mean of 18 and standard deviation of 6, determine the proportion of students with a 33 or higher. a. 0.0062 b. 0.0109 c. 0.0124 d. 0.0217

Last Answer : a. 0.0062

Given IQ scores are approximately normally distributed with a mean of 100 and standard deviation of 15, the proportion of people with IQs above 130 is: a. 95% b. 68% c. 5% d. 2.5%

Description : Given IQ scores are approximately normally distributed with a mean of 100 and standard deviation of 15, the proportion of people with IQs above 130 is: a. 95% b. 68% c. 5% d. 2.5%

Last Answer : d. 2.5%

A contract is to be completed in 46 days and 117 men were set to work, each working 8 hours a day. After 33 days, 4/7 of the work completed. How many additional men may be employed so that the work may be completed in time, each man now working 9 hours a day? a) 79 b) 80 c) 81 d) 82 e) 83

Description : A contract is to be completed in 46 days and 117 men were set to work, each working 8 hours a day. After 33 days, 4/7 of the work completed. How many additional men may be employed so that the work may be completed in time, each man now working 9 hours a day? a) 79 b) 80 c) 81 d) 82 e) 83

Last Answer : work finished by 33 days = 33 117 8 = 30888 man hours 4/7th of the job is finished. remaining work = 1-(4/7) = 3/7 if 4/7th of the work is 30888 hours, then 3/7th of the work = [30888 ... 9 number of men = 198 since, 117 men are already working, additional men required = 198 - 117 = 81 Answer: c)

Assume that water vaporizes at an absolute pressure of 1.5 m, barometric pressure head is 9.5 m and cavitation coefficient is 0.1 A turbine operates under a head of 40 m. the safe height of the runner above the tail water level, in meters, is : a) 6 b) 4 c) 3 d) 2

Description : Assume that water vaporizes at an absolute pressure of 1.5 m, barometric pressure head is 9.5 m and cavitation coefficient is 0.1 A turbine operates under a head of 40 m. the safe height of the runner above the tail water level, in meters, is : a) 6 b) 4 c) 3 d) 2

Last Answer : b) 4

The energy consumption and production patterns in a chemical plant over a 9 month period is provided in the table below; Month 1 2 3 4 5 6 7 8 9 Production in Tonnes / month 493 297 381 479 585 440 234 239 239 Energy Consumption MWh /month 78.2 75.7 76.3 76.1 78.1 70.7 73.7 64.4 72.1 Estimate the cumulative energy savings at end of the 9th month and give your inference on the result ? ( consider 9 month data for evaluation for predicted energy consumption)

Description : The energy consumption and production patterns in a chemical plant over a 9 month period is provided in  the table below; Month 1 2 3 4 5 6 7 8 9 Production in Tonnes / month 493 ... and give your inference on the  result ? ( consider 9 month data for evaluation for predicted energy consumption)

Last Answer : It is required to use the equations Y= mX + C and  nC + mΣX = ΣY  cΣX + mΣX2 = ΣXY Month X =  Production in  Tonnes /  month Y =Energy  Consumption MWh  /month  X 2 XY 1 493 78.2 ... 73.7 54756 17240.63 8 239 64.4 57121 15402.96 9 239 72.1 57121 17228.98 3387 665.3 1410683 253221

Given the following data pairs (x, y), find the regression equation. (1, 1.24), (2, 5.23), (3, 7.24), (4, 7.60), (5, 9.97), (6, 14.31), (7, 13.99), (8, 14.88), (9, 18.04), (10, 20.70) a. y = 0.490 x - 0.053 b. y = 2.04 x c. y = 1.98 x + 0.436 d. y = 0.49 x

Description : Given the following data pairs (x, y), find the regression equation. (1, 1.24), (2, 5.23), (3, 7.24), (4, 7.60), (5, 9.97), (6, 14.31), (7, 13.99), (8, 14.88), (9, 18.04), (10, 20.70) a. y = 0.490 x - 0.053 b. y = 2.04 x c. y = 1.98 x + 0.436 d. y = 0.49 x

Last Answer : c. y = 1.98 x + 0.436

A ray of light suffers a deviation of `3.2^(@)` on passing through a thin prism of angle `5^(@)`. What is the refractive index of the material of the

Description : A ray of light suffers a deviation of `3.2^(@)` on passing through a thin prism of angle `5^(@)`. What is the refractive index of the material of the

Last Answer : A ray of light suffers a deviation of `3.2^(@)` on passing through a thin prism of angle ` ... is the refractive index of the material of the prism ?

What is the qualifying time for the fastest 5 percent of all runners if the average finishing time is 5 minutes 17 seconds with standard deviation of 12 seconds?

Description : What is the qualifying time for the fastest 5 percent of all runners if the average finishing time is 5 minutes 17 seconds with standard deviation of 12 seconds?

Last Answer : Assuming a normal distribution:For the fastest 5% we need to find the z value which gives 100%- 5% = 95% of the area under the normal curve (from -∞).Using single tailed tables, we need the z value which gives 95%- 50% ... deviation≈ 5 min 17 sec + 1.645 12 sec≈ 5 min 17 sec + 20 s= 5 min 37 sec

What is the deviation ratio for an FM-phone signal having a maximum frequency swing of plus or minus 5 kHz and accepting a maximum modulation rate of 3kHz? A. 60 B. 0.16 C. 0.6 D. 1.66

Description : What is the deviation ratio for an FM-phone signal having a maximum frequency swing of plus or minus 5 kHz and accepting a maximum modulation rate of 3kHz? A. 60 B. 0.16 C. 0.6 D. 1.66

Last Answer : D. 1.66

The standard deviation of the variation in the transmission loss of a circuit should not exceed A. 3 dB B. 1 dB C. 5 dB D. 0.5dB

Description : The standard deviation of the variation in the transmission loss of a circuit should not exceed A. 3 dB B. 1 dB C. 5 dB D. 0.5dB

Last Answer : B. 1 dB

The allowable deviation ratio of commercial FM broadcast. A. 25 B. 15 C. 5 D. 75

Description : The allowable deviation ratio of commercial FM broadcast. A. 25 B. 15 C. 5 D. 75

Last Answer : C. 5

The ratio of maximum deviation angle and maximum polar deflection angle of a Lemniscate curve, isA) 2 (B) 3 (C) 4 (D) 5

Description : The ratio of maximum deviation angle and maximum polar deflection angle of a Lemniscate curve, is A) 2 (B) 3 (C) 4 (D) 5

Last Answer : Answer: Option B

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

86. To apply Shewhart-cusum combined procedure, the Shewhart control limits should be applied almost standard deviation from the center. a) 2 b) 1 c) 1.5 d) 3.5

Description : 86. To apply Shewhart-cusum combined procedure, the Shewhart control limits should be applied almost standard deviation from the center. a) 2 b) 1 c) 1.5 d) 3.5

Last Answer : 2

As per IS: 456-2000, recommended value for standard deviation for concrete mix from M30 to M50 is [ A ] 1 N/mm2 [ B ] 2 N/mm2 [ C ] 4 N/mm2 [ D ] 5 N/mm2

Description : As per IS: 456-2000, recommended value for standard deviation for concrete mix from M30 to M50 is [ A ] 1 N/mm2 [ B ] 2 N/mm2 [ C ] 4 N/mm2 [ D ] 5 N/mm2

Last Answer : [ D ] 5 N/mm2

When the people of France brought about the abolishment of the absolute kingdom and set the stage for the establishment of the first French Republic? a. 1789. b. 1748. c. 1733. d. 1889.

Description : When the people of France brought about the abolishment of the absolute kingdom and set the stage for the establishment of the first French Republic? a. 1789. b. 1748. c. 1733. d. 1889.

Last Answer : a. 1789.

The potential difference set up across the depletion region is called (a) Absolute potential (b) neutral potential (c) reverse potential (d) potential barrier

Description : The potential difference set up across the depletion region is called (a) Absolute potential (b) neutral potential (c) reverse potential (d) potential barrier

Last Answer : (d) potential barrier

Find the mode of the data 7, 8, 9, 9, 10, 7, 11, 10, 7, 6.

Description : Find the mode of the data 7, 8, 9, 9, 10, 7, 11, 10, 7, 6.

Last Answer : Find the mode of the data 7, 8, 9, 9, 10, 7, 11, 10, 7, 6.

Statistics question. Finding the standard deviation for these numbers: 1, 2, 98, 100, 105.

Description : Statistics question. Finding the standard deviation for these numbers: 1, 2, 98, 100, 105.

Last Answer : Hint: There aren’t going to be any trick questions in statistics. There is enough information to calculate the standard deviation.

How to understand this Standard Deviation question?

Description : How to understand this Standard Deviation question?

Last Answer : So, this question is related to the definition of standard deviation, rather then having to calculate it. I refer you to wikipedia, which has a decent write-up. Specifically the rules for normally distributed data ... the math there is too high-level, just take a good look at the plot on the right.

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 is the standard deviation ?

Description : What is the standard deviation ?

Last Answer : Ideal deviation is a statistical method of measuring business risk.

What is deviation ?

Last Answer : Deviation is a behavior that destroys the values of a group or society.

Deviation Who Say ?

Last Answer : Deviation Yes One Economic Indicator Which Market Of Volatility Instructions By

Light Deviation Most More No In colors ?

Description : light Deviation Most More No In colors ?

Last Answer : Light Deviation Most More Purple In colors.

How do I calculate the deviation of two solid diagonals?

Description : Please, how do I calculate the deviation of the two solid diagonals AG, BH in the cube ABCDEFGH?

Last Answer : Need Answer

The refractive index of the material of a prism of `60^(@)` angle for yellow light is `sqrt(2)`. Calculate angle of minimum deviation, angle of incide

Description : The refractive index of the material of a prism of `60^(@)` angle for yellow light is `sqrt(2)`. Calculate angle of minimum deviation, angle of incide

Last Answer : The refractive index of the material of a prism of `60^(@)` angle for yellow light is ... deviation, angle of incidence and angle of refraction.