Probability (ISS Statistics Paper I (New 2016 MCQ Pattern)): Questions 93 - 96 of 205

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Question number: 93

» Probability » Probability Distributions » Binomial

MCQ▾

Question

Examine the following curves and choose the incorrect option regarding them.

Finding similarities and differences in the given curves

Finding Similarities and Differences in the Given Curves

What are the similarities and the differences in the two curves

Choices

Choice (4) Response

a.

A and B both follows binomial distribution

b.

A and B have same small value of the number of independent trials.

c.

B have large probability of success.

d.

None of the above

Question number: 94

» Probability » Distribution Functions and Properties

MCQ▾

Question

Which of the following is/are not correct regarding cumulative distribution function?

Choices

Choice (4) Response

a.

Two random variables cannot have same cumulative distribution function.

b.

Two different cumulative distribution functions cannot correspond to single random variable.

c.

Question does not provide sufficient data or is vague

d.

None of the above

Question number: 95

» Probability » Bayes' Theorem and Applications

MCQ▾

Question

Suppose there is a school with 40 % boys and 60 % girls as its students. The female students wear trousers or skirts in equal numbers; the boys all wear trousers. An observer sees a (random) student from a distance, and what the observer can see is that this student is wearing trousers. What is the probability this student is a girl?

Choices

Choice (4) Response

a.

0.552

b.

0.250

c.

0.428

d.

Question does not provide sufficient data or is vague

Question number: 96

» Probability » Probability Distributions » Negative Binomial

MCQ▾

Question

A standard, fair die is thrown until 5 sixes occur. Let X denote the number of throws. Then variance of X is ________.

Choices

Choice (4) Response

a.

900

b.

150

c.

250

d.

All of the above

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