# ACET (Actuarial Common Entrance Test) Statistics: Questions 76 - 82 of 201

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## Question 76

### Question

MCQ▾Weight of eight boys in kg is noted as:

Find the median weight.

### Choices

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

a. | 72 | |

b. | 71 | |

c. | 70 | |

d. | 71.5 |

## Question 77

### Question

MCQ▾If X follows Poisson distribution such that Find the mean & variance

### Choices

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

a. | 2,1 | |

b. | 2,2 | |

c. | 1,2 | |

d. | 1,1 |

## Question 78

### Question

MCQ▾Which of the following is a one dimensional diagram?

### Choices

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

a. | Bar diagrams | |

b. | Histograms | |

c. | Breadth diagrams | |

d. | Frequency Polygon |

## Question 79

### Question

MCQ▾Out of 8 consonants and 3 vowels, how many words of 3 consonants and 2 vowels can be formed?

### Choices

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

a. | 16800 | |

b. | 20,000 | |

c. | ||

d. | 20,160 |

## Question 80

### Question

MCQ▾If the regression coefficient of b in is equal to zero, then the regression line will

### Choices

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

a. | Pass through the origin | |

b. | Neither intersect X axis nor Y axis | |

c. | Be parallel to the X axis | |

d. | Be parallel to the Y axis |

## Question 81

### Question

MCQ▾A committee of four has to be formed from among three economists, 4 engineers, 2 statisticians and 1 doctor. What is the probability that each of the four professions is represented on the committee?

### Choices

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

a. | 0.1143 | |

b. | 0.24 | |

c. | 0.1742 | |

d. | 0.3 |

## Question 82

### Question

MCQ▾Height of 20 students in centimetres is displayed through the following stem and leaf plot-

Stem | Leaf |

14 | 3 5 6 |

15 | 4 8 9 |

16 | 0 0 2 5 5 5 7 |

17 | 1 2 2 5 6 |

18 | 2 6 |

Which of the following is incorrect?

### Choices

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

a. | 15 % of students have height greater than 175cm | |

b. | The range of the height is 43 cm | |

c. | The modal height is 172 cm | |

d. | The median height is 165 cm |