ACET (Actuarial Common Entrance Test) Statistics: Questions 6 - 11 of 81

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Question number: 6

» Measures of Spread » Standard Deviation

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MCQ▾

Question

If A’s score in an exam was 80, with a mean of 60. What would be the standardized score for his exam if the standard deviation is 15?

Choices

Choice (4)Response

a.

1.52

b.

1.33

c.

1.72

d.

1.25

Question number: 7

» Discrete Random Variables » Coefficient of Skewness

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MCQ▾

Question

First deciles of data is 8, ninth deciles is 12 and fifth deciles is 6 then coefficient of skewness is

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 8

» Measures of Spread » Skewness

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Question

If mean = 25, median = 30 and standard deviation = 15, the distribution will be:

Choices

Choice (4)Response

a.

Positively Skewed

b.

Normal

c.

Negatively Skewed

d.

Symmetrical

Question number: 9

» Probabilities » Independence of Events

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MCQ▾

Question

The probability that a man will be alive after 20 years is 0.4 and the probability that his wife will be alive after 20 years is 0.3. Find the probability that at least one of them will be alive after 20 years.

Choices

Choice (4)Response

a.

0.12

b.

0.58

c.

0.18

d.

All of the above

Question number: 10

» Probabilities » Independence of Events

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MCQ▾

Question

When a coin is tossed twice, what is the probability of getting at least 1 head?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 11

» Correlation and Regression » Regression

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MCQ▾

Question

When the two regression lines intersect each other at 90°, then,

Choices

Choice (4)Response

a.

Intercept is zero

b.

Correlation is zero

c.

Regression coefficient is zero

d.

All of the above

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