ACET (Actuarial Common Entrance Test) Statistics: Questions 93 - 98 of 201

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Question number: 93

» Probabilities » Conditional Probabilities

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MCQ▾

Question

A bag contains 16 coins of which two are counterfeit with heads on both sides. The rest are fair coins. One is selected at random from the bag and tossed. The probability of getting a head is

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question number: 94

» Combinatorial Probability

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MCQ▾

Question

How many words with or without meaning can be each of 2 vowels and 3 consonants can be formed from the letters of the word DAUGHTER?

Choices

Choice (4)Response

a.

b.

3600

c.

d.

Question number: 95

» Probabilities » Conditional Probabilities

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MCQ▾

Question

A bag contains n + 1 coins. If it is known that one of these coins shows heads on both sides, whereas others are fair. One coin is selected at random and tossed. If the probability that toss results in heads is 7/12, then find the value of n.

Choices

Choice (4)Response

a.

10

b.

6

c.

5

d.

4

Question number: 96

» Discrete Random Variables » Mean, Mode, Median

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MCQ▾

Question

There are 5 white and 3 black balls in a box. 3 balls are taken at random from the box. Find the expected number of black balls.

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question number: 97

» Probabilities » Basic Rules of Probabilities

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MCQ▾

Question

A die is thrown thrice. Find the probability of getting an odd number atleast once.

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 98

» Continuous Distributions » The Normal Distribution

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MCQ▾

Question

If then variance of

Choices

Choice (4)Response

a.

6

b.

9

c.

10

d.

1

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