**STA301 Quiz Statistics**

Question # 1

A standard deviation obtained from sampling distribution of sample statistics is known as

Select correct option:

Sampling error

Standard error

Minimum error

Universal error

Question # 2

A parameter is a ..... quantity.

Select correct option:

Constant

Variable

Sample

Random

Question # 3

How can you define statistical inference?

Select correct option:

A decision, estimate, prediction or generalization about the population based on information contained in a sample

A statement made about a sample based on the measurements in that sample

A set of data selected from a larger set of data

A decision, estimate, prediction or generalization about sample based on information contained in a population

Question # 4

Which of the following is most important and most widely used method in point estimation?

Select correct option:

The method of moments

The method of fractional moments

The method of leas square

The method of maximum likelihood

Question # 5

The location and shape of the normal curve is (are) determined by:

Select correct option:

Mean

Variance

Mean & variance

Mean & standard deviation

Question # 6

A discrete probability function f(x) is always:

Select correct option:

Zero

One

Negative

Non-negative

Question # 7

Binomial distribution is skewed to the right if:

Select correct option:

p=q

P

p>q

p=n

Question # 8

In a discrete distribution function, F(23) can be stated as:

Select correct option:

P (there are at most 23 successes)

P (there are at least 23 successes)

P (there are less than 23 successes)

P (there are more than 23 successes)

Question # 9

The Probabilities of the various values of the sample satistic can be computed using the......... definition of probability.

Select correct option:

Subjective

Objective

Classical

None of the baove

Question # 10

E(10X +3) =_______

Select correct option:

10 E(X)

E(X)+3

10 E(X)+3

100E(X)