# Statistics MCQ Questions and Answers

**Statistics MCQ Questions and Answers**

**1- The measuring theorem which helps in determining proportion of observations for specific interval of mean and standard deviation is classified as **

(A) Pearson Theorem

(B) Chebyshev’s Theorem

(C) Sampling Theorem

(D) Population Theorem

** **

**2- What does autocovariance measure? **

(A) Linear dependence between multiple points on the different series observed at different times

(B) Quadratic dependence between two points on the same series observed at different times

(C) Linear dependence between two points on different series observed at same time

(D) Linear dependence between two points on the same series observed at different times

** **

**3- To test the randomness of a sample, the appropriate test is **

(A) Run Test

(B) Sign Test

(C) Median Test

(D) None of these

** **

**4- Selection of a football team for FIFA World Cup is called as? **

(A) Random sampling

(B) Systematic Sampling

(C) Purposive sampling

(D) Cluster sampling

** **

**5- In-which of the methods the entire population is divided into a number of homogeneous groups **

(A) two stage sampling

(B) cluster sampling

(C) simple random sampling

(D) stratified random sampling

** **

**6- The method of least squares finds the best fit line that the error between observed and estimated points on the line are **

(A) maximize

(B) minimize

(C) minimize or maximize

(D) approaches to infinity

** **

**7- What does the graph of ‘bathtub curve’ represent? **

(A) Failure rate v/s Mean

(B) Failure rate v/s Time

(C) Failure rate v/s Distance

(D) Failure rate v/s Velocity

** **

**8- What can you say about the efficiency of the multistage sampling, compared to single stage sampling? **

(A) no efficient

(B) more efficient

(C) equal efficient

(D) less efficient

** **

**9- The family of parametric distributions, for which the mean and variance does not exist. **

(A) Polya’s distribution

(B) Cauchy distribution

(C) Negative Binomial distribution

(D) Normal distribution

** **

**10- The method of confounding is a device to reduce the size of **

(A) blocks

(B) experiments

(C) treatments

(D) replications

**ANSWERS:**

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