# ACET (Actuarial Common Entrance Test) Statistics: Questions 133 - 137 of 201

Access detailed explanations (illustrated with images and videos) to **201** questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. *Unlimited Access, Unlimited Time, on Unlimited Devices*!

View Sample Explanation or View Features.

Rs. 200.00 -OR-

How to register? Already Subscribed?

## Question 133

### Question

MCQ▾A die is thrown twice and the sum of the numbers appearing is observed to be 6. What is the conditional probability that the number 4 has appeared atleast once?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 134

### Question

MCQ▾In a distribution, the difference between the third and first quartiles is 4 and their sum is 74. Find the skewness if median is 36.

### Choices

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

a. | ||

b. | -0.5 | |

c. | 1 | |

d. | 0.25 |

## Question 135

### Question

MCQ▾In an entrance test, there are multiple choice question. There are four possible answers to each question of which one is correct. The probability that a student knows the answer to a question is 90 % . If he gets the correct answer to a question, then find the probability that he was guessing.

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 136

### Question

MCQ▾Following is an incomplete distribution having modal mark as 45

Marks | 0 - 20 | 20 - 40 | 40 - 60 | 60 - 80 | 80 - 100 |

No. of Students | 5 | 8 | ? | 12 | 5 |

What would be the mean marks?

### Choices

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

a. | 52.22 | |

b. | 48 | |

c. | 46.67 | |

d. | 50 |

## Question 137

### Question

MCQ▾Suppose you take a multiple choice test with 10 questions and each question has 5 answer choices (a, b, c, d, e) . What is the probability that you get exactly 4 questions correct just by guessing?

### Choices

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

a. | ||

b. | ||

c. | ||

d. | None of the above |