ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 231 - 235 of 461

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Question number: 231

» Probability » Bayes' Theorem and Applications

MCQ▾

Question

A is known to tell the truth in 3 cases out of 8 and he states that a white ball was drawn from a bag containing 6 blacks and 2 white ball. Find the probability that the white ball was drawn.

Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

Question number: 232

» Probability » Probability Distributions » Multinomial

MCQ▾

Question

Which of the following statement is/are incorrect regarding Multinomial experiment?

Choices

Choice (4) Response

a.

There are fixed number of repeated trails.

b.

Every trial has a fix possible number of outcomes.

c.

The trials are dependent on each other.

d.

Question does not provide sufficient data or is vague

Question number: 233

» Probability » Conditional Probability

MCQ▾

Question

Your neighbor has 2 children. You learn that he has a son, Rahul. What is the probability that Rahul’s sibling is a brother?

Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

Question number: 234

» Probability » Probability Distributions » Poisson

MCQ▾

Question

If water supply failures occur according to a Poisson distribution with an average of 5 failures every ten weeks, calculate the probability that there will not be more than one failure during a particular week

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 235

» Probability » Probability Distributions » Uniform

MCQ▾

Question

The amount of time, in minutes, that a person must wait for a bus is uniformly distribute between 5 and 20 minutes, inclusive. On the average, how long must person wait?

Choices

Choice (4) Response

a.

7.5 minutes

b.

12.5 minutes

c.

10 minutes

d.

None of the above

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