# Correlation and Regression (CA Foundation Maths, Statictics, Logic, and Reasoning): Questions 1 - 6 of 42

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## Question number: 1

» Correlation and Regression

### Question

for a classification of bivariate data, the maximum number of conditional distributions is

### Choices

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

a. | p + q | |

b. | pq | |

c. | p | |

d. | p or q |

## Question number: 2

» Correlation and Regression

### Question

If all the plotted points in a scatter diagram lie on a single line, then the correlation is

### Choices

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

a. | Perfect positive | |

b. | Either Perfect Negative or Perfect Positive | |

c. | Perfect negative | |

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

## Question number: 3

» Correlation and Regression

### Question

If the plotted points in a scatter diagram are evenly distributed, then the correlation is

### Choices

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

a. | Negative | |

b. | Positive | |

c. | Zero | |

d. | All of the above |

## Question number: 4

» Correlation and Regression

### Question

When r = 1, all the points in a scatter diagram would lie

### Choices

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

a. | On a straight line directed from lower left to upper right | |

b. | On a straight line | |

c. | On a straight line directed from upper left to lower right | |

d. | All of the above |

## Question number: 5

» Correlation and Regression

### Question

If there are two variables x and y, then the number of regression equations could be

### Choices

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

a. | 2 | |

b. | Any number | |

c. | 3 | |

d. | 1 |

## Question number: 6

» Correlation and Regression

### Question

Scatter diagram helps us to

### Choices

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

a. | Compute the extent of correlation between two variables | |

b. | Find the nature correlation between two variables | |

c. | Obtain the mathematical relationship between two variables | |

d. | None of the above |