Statistics MCQs with explanations

Question 1

The mathematical exception of x + y is equal to ________?

Accepted Answer

E(x + x)

Question 2

The mean of a distribution is 23, the median is 24, and the mode is 25.5. It is most likely that this distribution is________?

Accepted Answer

Negatively Skewed

Question 3

Quartiles, deciles are located from an ogive in a way________?

Accepted Answer

Quarlities

Question 4

Which mean is most effected by extreme values?

Accepted Answer

AM

Question 5

A contractor employs 20 male, 15 female and 5 children in his factory. Male wages are Rs. 10 per day, female Rs. 8 per day, and children Rs. 3 per day. The weighted x of wages paid per day will be________?

Accepted Answer

8.37

Question 6

Class mark is the value which divides a class into ________ equal parts?

Accepted Answer

Two

Question 7

The sum of the deviations about the mean is always________?

Accepted Answer

Zero

Question 8

The mean, median and mode for binomial distribution will be equal when:________?

Accepted Answer

p= 0.5

Question 9

If n = 400 and P=.69 then 90% C.I for P is ________?

Accepted Answer

652 and. 728

Question 10

A continuous random variable which can assume all possible values on scale in a given ________?

Accepted Answer

Interval

Statistics MCQs with Explanations