ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 290 - 294 of 471

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Question number: 290

» Probability » Conditional Probability

MCQ▾

Question

Consider the college applicant who has determined that he has 0.80 probability of acceptance and that only 60 % of the accepted students will receive dormitory housing. Of the accepted students who receive dormitory housing, 80 % will have at least one roommate. What is the probability of being accepted and receiving dormitory housing and having no roommates?

Choices

Choice (4) Response

a.

0.088

b.

0.096

c.

0.085

d.

0.074

Question number: 291

» Probability » Probability Distributions » Hypergeometric

MCQ▾

Question

An urn contain 20 balls out of which 8 are black and 12 are white. 5 balls are selected without replacement, then what is the probability that exactly 2 balls are white balls?

Choices

Choice (4) Response

a.

0.542

b.

0.238

c.

0.636

d.

0.827

Question number: 292

» Probability » Probability Distributions » Geometric

MCQ▾

Question

If geometric distribution, then will have ________.

Choices

Choice (4) Response

a.

Uncountable and possibly infinite number of possible values.

b.

Countable but possibly infinite number of possible values.

c.

Countable possibly finite number of possible values.

d.

Uncountable number of possible values.

Question number: 293

» Probability » Probability Distributions » Cauchy

MCQ▾

Question

The Student distribution with one degree of freedom has PDF________.

Choices

Choice (4) Response

a.

b.

Standard Cauchy distribution

c.

Question does not provide sufficient data or is vague

d.

None of the above

Question number: 294

» Probability » Conditional Probability

MCQ▾

Question

Suppose that five good bulbs and two defective ones have been mixed up. To find the defective bulbs, we test them one-by-one, at random and without replacement. What is the probability that we are lucky and find both of the defective fuses in the first two tests?

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

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