# Correlation and Regression (CA Foundation Maths, Statictics, Logic, and Reasoning): Questions 12 - 18 of 42

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## Question number: 12

» Correlation and Regression

### Question

The method applied for deriving the regression equations is known as### Choices

Choice (4) | Response | |
---|---|---|

a. | Concurrent deviation | |

b. | Product moment | |

c. | Least squares | |

d. | Normal equation |

## Question number: 13

» Correlation and Regression

### Question

The correlation between shoe-size and intelligence is

### Choices

Choice (4) | Response | |
---|---|---|

a. | Negative | |

b. | Positive | |

c. | Zero | |

d. | None of the above |

## Question number: 14

» Correlation and Regression

### Question

Pearson’s correlation coefficient is used for finding

### Choices

Choice (4) | Response | |
---|---|---|

a. | Correlation for linear relation only | |

b. | Correlation for curvilinear relation only | |

c. | Correlation for any type of relation | |

d. | Question does not provide sufficient data or is vague |

## Question number: 15

» Correlation and Regression

### Question

For a bivariate frequency table, the maximum number of marginal distributions is

### Choices

Choice (4) | Response | |
---|---|---|

a. | 2 | |

b. | 1 | |

c. | p | |

d. | p + q |

## Question number: 16

» Correlation and Regression

### Question

What are the limits of the correlation coefficient?

### Choices

Choice (4) | Response | |
---|---|---|

a. | –1 and 1 | |

b. | No limit | |

c. | 0 and 1, including the limits | |

d. | –1 and 1, including the limits |

## Question number: 17

» Correlation and Regression

### Question

The correlation between the speed of an automobile and the distance travelled by it after applying the brakes is

### Choices

Choice (4) | Response | |
---|---|---|

a. | Zero | |

b. | Negative | |

c. | Positive | |

d. | None of the above |

## Question number: 18

» Correlation and Regression

### Question

What are the limits of the two regression coefficients?

### Choices

Choice (4) | Response | |
---|---|---|

a. | One positive and the other negative | |

b. | No limit | |

c. | Product of the regression coefficient must be numerically less than unity. | |

d. | Must be positive |