Probability (ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)): Questions 99 - 103 of 205

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Question number: 99

» 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: 100

» Probability » Probability Distributions » Geometric

MCQ▾

Question

If Equation geometric distribution, then Equation 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: 101

» Probability » Probability Distributions » Cauchy

MCQ▾

Question

The Student Equation distribution with one degree of freedom has PDF________.

Choices

Choice (4) Response

a.

Equation

b.

Standard Cauchy distribution

c.

Question does not provide sufficient data or is vague

d.

None of the above

Question number: 102

» 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.

Equation

b.

Equation

c.

Equation

d.

None of the above

Question number: 103

» Probability » Probability Distributions » Hypergeometric

MCQ▾

Question

A box contain 2000 items of which Equation are defective. Find the probability that 2 defectives will be obtained in a sample of size 10 without replacement.

Choices

Choice (4) Response

a.

0.193

b.

0.923

c.

0.388

d.

0.347

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