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201. |
## The Correlation coefficient between two variables is the………………..of their regression coefficients. |

A. | Arithmetic mean |

B. | Geometric mean |

C. | Harmonic mean |

D. | None of these |

Answer» B. Geometric mean |

202. |
## The percent of the total variation of the dependent variable Y explained by the set of independent variables X is measured by: |

A. | Coefficient of Correlation |

B. | Coefficient of Skewness |

C. | Coefficient of Determination |

D. | Standard error |

Answer» C. Coefficient of Determination |

203. |
## The value of the correlation coefficient lies between |

A. | -1 and +1 |

B. | -1 and 0 |

C. | 0 and 1 |

D. | None |

Answer» A. -1 and +1 |

204. |
## A Scatter diagram is considered for measuring |

A. | Linear relationship between two variables |

B. | Curvilinear relationship between two variables |

C. | Neither a or b |

D. | Both a and b |

Answer» D. Both a and b |

205. |
## The maximum value of the Rank Correlation coefficient is |

A. | +1 |

B. | -1 |

C. | 0 |

D. | None of these |

Answer» A. +1 |

206. |
## What is the purpose of a simple linear regression? |

A. | To predict scores on a dependent variable from scores on a single independent variable |

B. | To predict scores on an independent variable from scores on multiple dependent variables |

C. | To predict scores on a dependent variable from scores on multiple independent variables |

D. | None of Above |

Answer» A. To predict scores on a dependent variable from scores on a single independent variable |

207. |
## If r is the simple correlation coefficient, the quantity 𝑟2 is known as ................... |

A. | Coefficient of determination |

B. | Coefficient of non-determination |

C. | Coefficient of alienation |

D. | None of these |

Answer» A. Coefficient of determination |

208. |
## Asimpleindexnumberis anumberthatmeasures arelativechangein ? |

A. | group of variable with respect to a base |

B. | single variable with respect to a base |

C. | Both A &B |

D. | None of theabove |

Answer» B. single variable with respect to a base |

209. |
## Which index number is called as ideal index number. |

A. | Lasperys |

B. | Paasches |

C. | Fisher |

D. | None of Above |

Answer» C. Fisher |

210. |
## Secular trend can be measured by: |

A. | Two methods |

B. | Three methods |

C. | Four methods |

D. | Five methods |

Answer» C. Four methods |

211. |
## Fishers price index number is the ------- |

A. | A.M. of Lasperys and Paasches. |

B. | G.M. of Lasperys and Paasches. |

C. | Difference between Lasperys and Paasches |

D. | None of the above. |

Answer» B. G.M. of Lasperys and Paasches. |

212. |
## Relative Method is further divided into how many types? |

A. | One |

B. | two |

C. | None of the above |

D. | All of the Above. |

Answer» B. two |

213. |
## In Price Index Numbers prices can either be ? |

A. | Retail |

B. | wholesale |

C. | Both I and II |

D. | None of the above. |

Answer» C. Both I and II |

214. |
## While computing a weighted index, the current period quantities are used in the: |

A. | Laspeyre's method |

B. | Paasche's method |

C. | Marshall Edgeworth method |

D. | Fisher's ideal method |

Answer» B. Paasche's method |

215. |
## ………….is a point of reference in comparing various data describing individual behaviour. |

A. | Sample |

B. | Base period |

C. | Estimation |

D. | None |

Answer» B. Base period |

216. |
## Wheat crops badly damaged on account of rains is: |

A. | Cyclical movement |

B. | Random movement |

C. | Secular trend |

D. | Seasonal movement |

Answer» B. Random movement |

217. |
## A complete business cycle consists of a period of: |

A. | Prosperity |

B. | Recession |

C. | Both prosperity and recession |

D. | none of the above |

Answer» C. Both prosperity and recession |

218. |
## Which of the following can’t be a component for a time series plot? |

A. | Seasonality |

B. | Trend |

C. | Cyclical |

D. | Noise |

E. | None of the above |

Answer» E. None of the above |

219. |
## The additive and multiplicative time series models are: |

A. | Y = T + S + C + I and Y = TSCI respectively |

B. | Y = TSCI and Y = T + S + C + I |

C. | none of these |

D. | all |

Answer» A. Y = T + S + C + I and Y = TSCI respectively |

220. |
## Value of b in the trend line Y = a + bX is: |

A. | Always positive |

B. | Always negative |

C. | Both positive or negative |

D. | None of these |

Answer» C. Both positive or negative |

221. |
## In a straight line equation Y = a + bX; a and b are respectively: |

A. | X-intercept and slope |

B. | Y intercept and slope |

C. | can't determined |

D. | all |

Answer» B. Y intercept and slope |

222. |
## A time series consists of: |

A. | Short-term variations |

B. | Irregular variations |

C. | Long-term variations |

D. | All of the above |

Answer» D. All of the above |

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