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Mathematics → Statistics → Statistics and Probability MCQs

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21. The mean, mode, and median of the data set: 5, 4, 10, 12, 1, 5, 3, 7, 15, and 8 is respectively
(A) 5, 6, 7
(B) 7, 6, 5
(C) 6, 5, 7
(D) 7, 5, 6

22. “Rolling of a die” is an example of a random
(A) event
(B) outcome
(C) experiment
(D) sample space

ANSWERS: STATISTICS AND PROBABILITY MCQS
21. (D) 7, 5, 6
22. (C) experiment

SOLUTIONS: STATISTICS AND PROBABILITY MCQS

21. Mean=(5+4+10+12+1+5+3+7+15+8)/10=7
Mode=5 (it is the most repeated value)
For median, first arrange the values in ascending order: 1, 3, 4, 5, 5, 7, 8, 10, 12, 15. Now, 5 and 7 are the middle values. The average is: (5+7)/2=6. Therefore, 6 is the median. Hence, mean, mode, and median are 7, 5, 6 respectively.