# Probability (ISS Statistics Paper I (New 2016 MCQ Pattern)): Questions 40 - 44 of 205

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 469 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 300.00 or

## Question number: 40

» 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: 41

» 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: 42

» 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: 43

» 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

## Question number: 44

» Probability » Probability Distributions » Exponential

MCQ▾

### Question

Suppose that the lifetime of a bulb is modeled by an exponential distribution with (unknown) parameter λ. We test 5 bulbs and find they have lifetimes of 2, 3, 1, 3, and 4 years, respectively. What is the MLE for λ?

### Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

f Page