# ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 203 - 207 of 472

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## Question 203

### Question

MCQ▾

If Ω is a sample space the P (Ω) = ________ and can be explained by ________ perspective of probability. The correct choice for filling the blanks is?

### Choices

Choice (4)Response

a.

1 and classical

b.

1 and empirical

c.

0 and classical

d.

1 and axiomatic

## Question 204

### Question

MCQ▾

Which of the following cannot be the example of exponential random variable?

### Choices

Choice (4)Response

a.

The distance we travel along a road until we find the next pothole.

b.

Number of pizza a person eats in a month.

c.

The time until the next jobs arrives at a database server.

d.

All of the above

## Question 205

### Question

MCQ▾

A randomly chosen child repeatedly hits a bell. X is the length of time it takes to break it open. Is the random variable X discrete or continuous?

### Choices

Choice (4)Response

a.

Discrete

b.

Sometime discrete sometime continuous

c.

can՚t say anything.

d.

Continuous

## Question 206

### Question

MCQ▾

If , then what will be the standard deviation of ?

### Choices

Choice (4)Response

a.

59.8

b.

261.2

c.

161.4

d.

120.5

## Question 207

### Question

MCQ▾

Which of the following is skewness of a standardized Bernoulli distributed random variable which takes the value 1 with success probability of and the value 0 with failure probability of ?

### Choices

Choice (4)Response

a.

b.

c.

d.