ISS (Statistical Services) Statistics Paper I: Questions 397 - 400 of 1595

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Question 397

Question MCQ▾

In a sequence of independent Bernoulli trails, if denotes the number of failures before (fixed) success, then the expected value of will be ________

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Edit

Question 398

Question MCQ▾

Twenty sheets of copper alloy were examined for surface flaws. The frequency of the number of sheets with a given number of flaws per sheet was as follows:

Find Out the Probability
Number of flawsFrequency
04
13
25
32
44
51

What is the probability of finding a sheet chosen at random which contains 3 or more surface flaws?

Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

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Question 399

Question MCQ▾

Suppose we are tossing a fair die. If we say each of these outcomes has probability then which perspective of probability are we using?

Choices

Choice (4)Response

a.

Classical

b.

Empirical

c.

Classical and Empirical

d.

Question does not provide sufficient data or is vague

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Question 400

Question MCQ▾

Consider be a sequence of Bernoulli distribution. Which of the following two statements are correct regarding ?

Statement 1:

Statement 2:

Choices

Choice (4)Response

a.

Only Statement 2 is correct.

b.

Neither Statement 1 nor Statement 2 is correct.

c.

Only Statement 1 is correct.

d.

Both a. and c. are correct

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