Statistics MCQs with explanations

Question 1

A sample estimate is used to describe a characteristic of a________?

Accepted Answer

Sample

Question 2

Selection of s by the students to solve a paper is ________?

Accepted Answer

Non-random sampling

Question 3

The sum of squared deviations of a set of n values from their mean is________?

Accepted Answer

Least

Question 4

In symmetrical distribution, the co-efficient of skewness is equal to ________?

Accepted Answer

0

Question 5

Consumer price Index Number also called ________ is designed to measure changes?

Accepted Answer

Cost Living Index number

Question 6

If 10% is added to each value of variable, the geometric mean of new variable is added by________?

Accepted Answer

10%

Question 7

In normal distribution Q1=________?

Accepted Answer

u +.6745 (S.D.)

Question 8

The binomial distribution is symmetrical when:________?

Accepted Answer

Both (b) & (c) but not (a)

Question 9

Let Z1,Z2,....Zn be independent and identically distributedrandom variable, satisfying E[ι Zt ι]<∞. Let N be an integer valued random variable whose value n depends only on the values of the first n Z¡'s. Suppose E(N)< ∞, then E(Z1,Z2,....Zn)=E(N)E(Z) is called?

Accepted Answer

Independence Equation

Question 10

Statistics are ________ expressed?

Accepted Answer

Quantitatively

Statistics MCQs with Explanations