# ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 43 - 47 of 253

Access detailed explanations (illustrated with images and videos) to 253 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time! View Sample Explanation or View Features.

Rs. 200.00 or

How to register?

## Question number: 43

Edit
MCQ▾

### Question

If , then which of the following is true?

### Choices

Choice (4)Response

a.

is a biased estimator of

b.

c.

is a Unbiased estimator

d.

None of the above

## Question number: 44

Edit
MCQ▾

### Question

If the mean of the estimator is not equal to the population parameter, the estimator is said to be:

### Choices

Choice (4)Response

a.

Unbiased

b.

Negatively biased

c.

Biased

d.

Positively biased

## Question number: 45

Edit
MCQ▾

### Question

If is a random sample from a Bernoulli population with parameter , then is

### Choices

Choice (4)Response

a.

An unbiased estimator of

b.

A biased estimator of

c.

An unbiased estimator of +1

d.

Question does not provide sufficient data or is vague

## Question number: 46

Edit
MCQ▾

### Question

If are normally distributed random variables with mean μ and variance , then sample variance is

### Choices

Choice (4)Response

a.

Not an unbiased estimate of population variance

b.

Unbiased estimate of population variance

c.

d.

Both a. and c. are correct

## Question number: 47

Edit
MCQ▾

### Question

Let be a random sample from a uniform population on [0, ]. Then the sufficient estimator for is

### Choices

Choice (4)Response

a.

b.

c.

Question does not provide sufficient data or is vague

d.

All of the above

Developed by: