Statistics for 2023 MCQS

Here Are 50 Quizzes / Multiple-Choice Questions (Mcqs) Related To

STATISTICS 2023

Along With Their Correct Answers


1. What is the mean of the data set {10, 15, 20, 25, 30}?

a) 18

b) 20 (Correct Answer)

c) 22

d) 25



2. The middle value in an ordered data set is known as the:

a) Range

b) Median (Correct Answer)

c) Mode

d) Mean



3. The measure of how spread out the values in a data set are is called:

a) Mean

b) Median

c) Variance

d) Standard Deviation (Correct Answer)

, 4. If the correlation coefficient between two variables is -0.75, it indicates:

a) Strong positive correlation

b) Weak negative correlation (Correct Answer)

c) No correlation

d) Strong negative correlation



5. A skewed distribution with a long tail on the right is known as:

a) Positively skewed (Correct Answer)

b) Negatively skewed

c) Symmetrical

d) Normal distribution



6. In a binomial distribution, the sum of the probabilities of all possible outcomes
is equal to:

a) 0

b) 1 (Correct Answer)

c) -1

d) 0.5



7. The z-score measures the number of standard deviations a data point is from
the: