# Probability-Probability Distributions (ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)): Questions 55 - 57 of 109

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## Question number: 55

» Probability » Probability Distributions » Poisson

MCQ▾

### Question

Twenty sheets of copper alloy were examined for surface flaws. The frequency of the number of sheets with a given number of flaws per sheet was as follows:

 Number of flaws Frequency 0 4 1 3 2 5 3 2 4 4 5 1

What is the probability of finding a sheet chosen at random which contains 3 or more surface flaws?

### Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question number: 56

» Probability » Probability Distributions » Bernoulli

MCQ▾

### Question

Consider be a sequence of Bernoulli distribution. Which of the following two statements are correct regardingif any measurable set ?

Statement 1:

Statement 2:

### Choices

Choice (4) Response

a.

Only Statement 2 is correct.

b.

Only Statement 1 is correct.

c.

Neither Statement 1 nor Statement 2 is correct.

d.

Both a. and b. are correct

## Question number: 57

» Probability » Probability Distributions » Cauchy

MCQ▾

### Question

If has the standard Cauchy distribution and that and . Then satisfy following options:

### Choices

Choice (4) Response

a.

It has distribution function

b.

It has pdf

c.

None of the above

d.

All of the above

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