Which is used to measure the average relationship between two or more variables?

Which is used to measure the average relationship between two or more variables?
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 Ans. Regression
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The importance of the correlation co-efficient lies in the fact that: (A) There is a linear relationship between the correlated variables. (B) It is one of the most valid measure of statistics. (C) It allows one to determine the degree or strength of the association be tween two variables. (D) It is a non-parametric method of statistical analysis.

Description : The importance of the correlation co-efficient lies in the fact that: (A) There is a linear relationship between the correlated variables. (B) It is one of the most valid measure of statistics. ... of the association be tween two variables. (D) It is a non-parametric method of statistical analysis.

Last Answer : (C) It allows one to determine the degree or strength of the association be tween two variables.

The study the association or degree and deviation between two or more variables.

Description : The study the association or degree and deviation between two or more variables.

Last Answer : Ans. Correlation

A figure obtained by dividing the sum of all variable by their total number of variables.

Description : A figure obtained by dividing the sum of all variable by their total number of variables.

Last Answer : Ans. Averages/Arithmetic Mean

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Description : Which is not a measure of Disperson?

Last Answer : Ans. CV

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Description : The best measure of Disperson is

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A hypothesis which states the relationship among three or more variables is called as a. Simple Hypothesis b. Complex Hypothesis c. Research Hypothesis d. Non directional Hypothesis

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Relationship between AM, median and Mode in asymmetrical distribution

Description : Relationship between AM, median and Mode in asymmetrical distribution

Last Answer : Ans. Mode = 3 Median – 2 Mean

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Description : The relationship between Marketable to Marketed surplus for perishable products

Last Answer : Ans. Equal

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Description : The relationship between Celsius and Fahrenheit unit of temperature

Last Answer : Ans.

A Statistical measure of the Degree to which two variables move together A. Coefficient of variation B. Variance C. Covariance D . Certainty equivalent

Description : A Statistical measure of the Degree to which two variables move together A. Coefficient of variation B. Variance C. Covariance D . Certainty equivalent 

Last Answer : Answer: C

Which one of the following methods serve to measure correlation between two variables? (A) Scatter Diagram (B) Frequency Distribution (C) Two-way table (D) Coefficient of Rank

Description : Which one of the following methods serve to measure correlation between two variables? (A) Scatter Diagram (B) Frequency Distribution (C) Two-way table (D) Coefficient of Rank Correlation

Last Answer : (D) Coefficient of Rank Correlation 

Price elasticity of demand provides A.A measure of the responsiveness of the quantity demanded to changes in the price of the product, holding constant the values of all other variables in the demand function. B.A technical change in the goodwill of the firm C.A technical change in the cost of product D.Technical change in the value.

Description : Price elasticity of demand provides A.A measure of the responsiveness of the quantity demanded to changes in the price of the product, holding constant the values of all other variables in the demand function ... the firm C.A technical change in the cost of product D.Technical change in the value.

Last Answer : A.A measure of the responsiveness of the quantity demanded to changes in the price of the product, holding constant the values of all other variables in the demand function.

Sensors in which there is no need to contact the surface to measure the parameter or any variables are known as the ____ . (A) Tactile sensors (B) Touch sensors (C) Non-contact sensors (D) Force sensors

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Last Answer : C

How does the pattern of change between two variables ina linear relationship show up in A contextual situation?

Description : How does the pattern of change between two variables ina linear relationship show up in A contextual situation?

Last Answer : The answer requires the relevant context to be given.

How does the pattern of change between two variables in a linear relationship show up in a contextual relationship?

Description : How does the pattern of change between two variables in a linear relationship show up in a contextual relationship?

Last Answer : One variable is a multiple of the other. One context would bethe cost of buying tins of baked beans - with no discount for largepurchases. In the cost of one tin is x units then the cost of btins will by b*x units.

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Description : Which type of validity refers to the degree to which you can infer that the relationship between two variables is causal? a. Internal validity b. Population validity c. Ecological validity d. Statistical conclusion validity

Last Answer : a. Internal validity

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Description : The relationship between two amount or variables is measured with the help of ------------ a) Ratio b) Trend c) Comparative d) Common size

Last Answer : a) Ratio

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Description : Yard stick which measures relationship between two variables a) Financial statements b) Ratio c) Fund Flow analysis d) Cash flow analysis

Last Answer : b) Ratio

When the correlation coefficient, r, is close to one: a. there is no relationship between the two variables b. there is a strong linear relationship between the two variables c. it is impossible to tell if there is a relationship between the two variables d. the slope of the regression line will be close to one

Description : When the correlation coefficient, r, is close to one: a. there is no relationship between the two variables b. there is a strong linear relationship between the two variables c. it is impossible to ... a relationship between the two variables d. the slope of the regression line will be close to one

Last Answer : b. there is a strong linear relationship between the two variables 

We use Factorial Analysis: (A) To know the relationship between two variables (B) To test the Hypothesis (C) To know the difference between two variables (D) To know the difference among the many variables

Description : We use Factorial Analysis: (A) To know the relationship between two variables (B) To test the Hypothesis (C) To know the difference between two variables (D) To know the difference among the many variables

Last Answer : (C) To know the difference between two variables

What does Newtons Second Law explain the relationship between what variables?

Description : What does Newtons Second Law explain the relationship between what variables?

Last Answer : Newtons Second Law was F=ma, means the force(F) acting on objectis equal to mass(m) of object times it's acceleration(a).

40. Which of the following is a limitation associated with an LP model a. The relationship among decision variables is linear b. No guarantee to get integer valued solutions c. No considerations of effect of time & uncertainty on LP model d. All of the above

Description : 40. Which of the following is a limitation associated with an LP model a. The relationship among decision variables is linear b. No guarantee to get integer valued solutions c. No considerations of effect of time & uncertainty on LP model d. All of the above

Last Answer : d. All of the above

30. The distinguishing feature of an LP model is a. Relationship among all variables is linear b. It has single objective function & constraints c. Value of decision variables is non-negative d. All of the above

Description : 30. The distinguishing feature of an LP model is a. Relationship among all variables is linear b. It has single objective function & constraints c. Value of decision variables is non-negative d. All of the above

Last Answer : a. Relationship among all variables is linear

is a statistical technique which determines and quantifies the relationship between variables and enables standard equations to be established for energy consumption. a) linear regression analysis b) time-dependent energy analysis c) moving annual total d) CUSUM

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Last Answer : a) linear regression analysis

Internal validity refers to which of the following? a. The ability to infer that a casual relationship exists between 2 variables b. The extent to which study results can be generalized to and across populations of persons, settings, and times c. The use of effective measurement instruments in the study d. The ability to generalize the study results to individuals not included in the study

Description : Internal validity refers to which of the following? a. The ability to infer that a casual relationship exists between 2 variables b. The extent to which study results can be generalized to and ... the study d. The ability to generalize the study results to individuals not included in the study

Last Answer : b. The extent to which study results can be generalized to and across populations of persons, settings, and times

good qualitative problem statement: a. Defines the independent and dependent variables b. Conveys a sense of emerging design c. Specifies a research hypothesis to be tested d. Specifies the relationship between variables that the researcher expects to find

Description : good qualitative problem statement: a. Defines the independent and dependent variables b. Conveys a sense of emerging design c. Specifies a research hypothesis to be tested d. Specifies the relationship between variables that the researcher expects to find

Last Answer : b. Conveys a sense of emerging design

10) A valid study: A)portrays the population being studied B)establishes a casual relationship between variables C)uses random sampling D)verifies expected results E)measures what it is supposed to

Description : 10) A valid study: A)portrays the population being studied B)establishes a casual relationship between variables C)uses random sampling D)verifies expected results E)measures what it is supposed to

Last Answer : E)measures what it is supposed to

Which of the following is true with regard to a Linear Programming Model? a. No guarantee to get integer valued solution b. The relationship among decision variables is liner c. Both a and b d. None of the these

Description : Which of the following is true with regard to a Linear Programming Model? a. No guarantee to get integer valued solution b. The relationship among decision variables is liner c. Both a and b d. None of the these

Last Answer : d. None of the these

The average value for a character of the two parents of the concerned hybrid.

Description : The average value for a character of the two parents of the concerned hybrid.

Last Answer : Ans. Mid parent/Average Heterosis

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

Farming in an areas having average annual rainfall of £ 50 cm.

Description : Farming in an areas having average annual rainfall of £ 50 cm.

Last Answer : Ans. Dry farming

An average size of rain drop

Description : An average size of rain drop

Last Answer : Ans. 2 mm dia

Average annual rainfall of India

Description : Average annual rainfall of India

Last Answer : Ans. 400 Mha-m.

An average % of solar radiation reaching to the earth

Description : An average % of solar radiation reaching to the earth

Last Answer : Ans. 50

Which of the following includes examples of quantitative variables? a. Age, Temperature, Income, Height b. Grade Point Average, Anxiety Level, Reading Performance c. Gender, Religion, Ethnic Group d. Both a and b

Description : Which of the following includes examples of quantitative variables? a. Age, Temperature, Income, Height b. Grade Point Average, Anxiety Level, Reading Performance c. Gender, Religion, Ethnic Group d. Both a and b

Last Answer : d. Both a and b

Which of the following techniques uses variables such as price and promotional expenditures, which are related to product demand, to predict demand? (a) associative models ; (b) exponential smoothing ; (c) weighted moving average (d) time series

Description : Which of the following techniques uses variables such as price and promotional expenditures, which are related to product demand, to predict demand? (a) associative models ; (b) exponential smoothing ; (c) weighted moving average (d) time series

Last Answer : (a) associative models ; 

Transconductance is a measure of the relationship between what two factors?

Description : Transconductance is a measure of the relationship between what two factors?

Last Answer : The changes in plate current and grid voltage.

Which of the following statement(s) is/are true concerning the relationship between cardiac function and effective blood volume? a. A pulmonary capillary wedge pressure of 5–10 rules out fluid overload as a cause of pulmonary edema b. A shift to the right in the Frank-Starling curve is associated with compromised cardiac function c. Dilutional anemia may contribute to tachycardia even though blood volume and filling pressures are normal d. The sole purpose of a pulmonary artery catheter is to measure pulmonary artery pressure and cardiac output

Description : Which of the following statement(s) is/are true concerning the relationship between cardiac function and effective blood volume? a. A pulmonary capillary wedge pressure of 5-10 rules out ... sole purpose of a pulmonary artery catheter is to measure pulmonary artery pressure and cardiac output

Last Answer : Answer: b, c Although physical findings are often adequate to establish a diagnosis and institute management of cardiac failure, direct measurement of filling pressures of the right heart ( ... blood volume is normal, filling pressures are normal, and total body extracellular fluid is excessive

With regard to the rate of return on investment (ROI), which one of the following statements is not valid ? (A) It is an overall indicator of the profitability of an enterprise (B) It is a triangular relationship in the sense that ROI = Profit margin ×Asset turnover (C) It is a superior measure compared to the cash flow generated per share (D) It was first developed by Dupont, USA

Description : With regard to the rate of return on investment (ROI), which one of the following statements is not valid ? (A) It is an overall indicator of the profitability of an enterprise (B) It is a ... superior measure compared to the cash flow generated per share (D) It was first developed by Dupont, USA

Last Answer : Answer: It is a superior measure compared to the cash flow generated per share

Biochemical oxygen demand (BOD) in a river water (a) has no relationship with concentration of oxygen in the water (b) gives a measure of Salmonella in the water (c) increases when sewage gets mixed with river water (d) remains unchanged when algal bloom occurs.

Description : Biochemical oxygen demand (BOD) in a river water (a) has no relationship with concentration of  oxygen in the water (b) gives a measure of Salmonella in the water (c) increases when sewage gets mixed with river  water (d) remains unchanged when algal bloom occurs.

Last Answer : (c) increases when sewage gets mixed with river  water

Pick out the correct statement. (A) Chemical oxygen demand (COD) is a measure of chemically oxidisable organic matter present in water (B) COD is determined by oxidising the organic matter present in water with potassium dichromate in cone, sulphuric acid solution at boiling temperature for specified time (C) COD is related to BOD of a given waste in water but the relationship varies for different wastes. Typically COD of potable water may be 1-2 mg/litre (D) All (A), (B) and (C)

Description : Pick out the correct statement. (A) Chemical oxygen demand (COD) is a measure of chemically oxidisable organic matter present in water (B) COD is determined by oxidising the organic matter present in water with potassium dichromate ... of potable water may be 1-2 mg/litre (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)