Probability-Probability Distributions (ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)): Questions 67 - 71 of 109

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Question number: 67

» 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

Passage

The random number generator in Excel is set to produce numbers at random from 4 to 20 using a rectangular distribution.

Question number: 68 (1 of 2 Based on Passage) Show Passage

» Probability » Probability Distributions » Rectangular

MCQ▾

Question

Define event A to be a number is less than 8 and define event B to be a number is in the interval Equation . Then, which of the following relation is correct among A and B?

Choices

Choice (4) Response

a.

A and B are independent.

b.

A and B are mutually exclusive.

c.

A and B are mutually exhaustive.

d.

All of the above

Question number: 69 (2 of 2 Based on Passage) Show Passage

» Probability » Probability Distributions » Rectangular

MCQ▾

Question

The probability of getting a value less than 8 is________ and Equation is________.

Choices

Choice (4) Response

a.

0.50 and 0.25

b.

0.25 and 0.50

c.

0.125 and 0.25

d.

All of the above

Question number: 70

» Probability » Probability Distributions » Geometric

MCQ▾

Question

Let Equation be a discrete random variable with the geometric distribution with parameter Equation . Then the Probability Generating Function of Geometric Distribution will be ________.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

None of the above

Question number: 71

» Probability » Probability Distributions » Exponential

MCQ▾

Question

Suppose that the amount of time one spends in a bank is exponentially distributed mean 10 minutes, Equation . What is the probability that a customer will spend more than 15 minutes in the bank given that he is still in the bank after 10 minutes?

Choices

Choice (4) Response

a.

0.50

b.

Equation

c.

0.314

d.

None of the above

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