Statistics Questions and Answers

Statistics Questions and Answers

1-Which of the following is not a continuous probability distribution?

(A) Poisson distribution

(B) Lognormal distribution

(C) Normal distribution

(D) Gamma distribution

 

2-In a binomial probability distribution it is impossible to find

(A) P(0≤ X ≤n)

(B) P(X>0)

(C) P(X=0)

(D) P(X< 0)

 

3-Smaller P value indicates more evidence in support of:

(A) further testing

(B) the quality of researcher

(C) the alternative hypothesis

(D) the null hypothesis

 

4-Which of the following is not a non-probability sampling method?

(1) Simple Random Sampling

(2) Stratified Sampling

(3) Purposive Sampling

(4) Snowball Sampling

(A) 1 and 2

(B) 1, 2 and 3

(C) 2, 3 and 4

(D) All

 

5-__________________ is referred to as the rectangular distribution.

(A) normal distribution

(B) binomial distribution

(C) exponential distribution

(D) uniform distribution

 

6-A failing student is passed by an examiner. It is an example of

(A) Difficult to tell

(B) Unbiased decision

(C) Type-II error

(D) Type-I error

 

7-When the problem involves the allocation of n different facilities to n different tasks, it is often termed as ___

(A) Assignment problem

(B) Integer programming problem

(C) Principle of Game

(D) Transportation problem

 

8-A survey determines that in a locality, 33% go to work by Bike, 42% go by Car, and 12% use both. The probability that a random person selected uses neither of them is

(A) 0.75

(B) 0.61

(C) 0.37

(D) 0.29

 

9-Any statement whose validity is tested on the basis of a sample is called:

(A) Simple hypothesis

(B) Statistical hypothesis

(C) Alternative hypothesis

(D) Null hypothesis

 

10-Which of the following is not a sequencing problem?

(A) Many machines, one job

(B) Three machines, many jobs

(C) Two machines, many jobs

(D) One machine, many jobs

 

ANSWERS:

1-(A), 2-(D), 3-(C), 4-(A), 5-(D), 6-(C), 7-(A), 8-(C), 9-(B), 10-(A)