# ACET (Actuarial Common Entrance Test) Statistics: Questions 25 - 32 of 81

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## Question number: 25

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MCQ▾

### Question

Weakly pocket money of 6 students are noted as:

₹80, ₹70, ₹90, ₹100, ₹500, ₹50. Find out range.

### Choices

Choice (4)Response

a.

₹ 30

b.

₹ 450

c.

₹ 100

d.

₹ 400

## Question number: 26

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MCQ▾

Given , . Find

### Choices

Choice (4)Response

a.

0.74

b.

0.90

c.

0.90

d.

0.16

## Question number: 27

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MCQ▾

If , find .

### Choices

Choice (4)Response

a.

17

b.

8

c.

9

d.

1

## Question number: 28

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MCQ▾

### Question

Given, = 0.67, Find

### Choices

Choice (4)Response

a.

0.60

b.

0.24

c.

0.25

d.

0.67

## Question number: 29

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MCQ▾

### Question

The arithmetic mean of is 6. The value of X is

### Choices

Choice (4)Response

a.

10

b.

11

c.

12

d.

Question does not provide sufficient data or is vague

## Question number: 30

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MCQ▾

### Question

The standard deviation of X and Y are 4 and 5 respectively. The correlation coefficient between them is 0.8. Find the regression coefficient of Y on X.

### Choices

Choice (4)Response

a.

b.

c.

d.

1

## Question number: 31

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MCQ▾

### Question

Which of the following methods uses covariance in calculating correlation coefficient?

### Choices

Choice (4)Response

a.

Spearman’s Rank Correlation

b.

Concurrent Deviation

c.

Karl Pearson’s Coefficient of Correlation

d.

Question does not provide sufficient data or is vague

## Question number: 32

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MCQ▾

### Question

The probability that a student will pass the first examination is 0.8 and the probability of passing the second examination is 0.7. The probability of passing at least one of them is 0.95. What is the probability of his passing both the examinations?

### Choices

Choice (4)Response

a.

0.55

b.

0.42

c.

1

d.

0.63

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