Statistics MCQ Set 3
STATISTICS MCQ SET 3
1. Find the mode and median of 8 , 7 , 3 , 7 , 9 , 4 , 5 , 9 , 7 , 6 , 5 .
(a) 9 , 8
(b) 7 , 7
(c) 8 , 6
(d) 7 , 8
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Answer: B
2. Find the sum of the mean , median and mode of the given data .
9 , 35 , 20 , 25 , 25 , 15 , 25
(a) 50
(b) 47
(c) 75
(d) 72
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Answer: D
3. Mean of a sample data = 60 and median = 48 . Find the mode of this distribution .
(a) 36
(b) 18
(c) 24
(d) 48
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Answer: C
4. Find the mode if mean and median are 4 and 5 respectively .
(a) 9
(b) 7
(c) 11
(d) 5
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Answer: B
5. What is the range of the following data ?
Data :- 35 , 40 , 25 , 27 , 38 , 45 , 50 , 65
(a) 44
(b) 45
(c) 38
(d) 40
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Answer: D
6. Find the range of 12 , 22 , 7 , 1 , 5 , 27 , 30 , 43 .
(a) 28
(b) 48
(c) 35
(d) 42
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Answer: D
7. Calculate the range for the given frequency distribution .
Class interval :- 10 – 20 , 20 – 30 , 30 – 40 , 40 – 50 , 50 -60 , 60 – 70 , 70 – 80
Frequency :- 2 , 3 , 14 , 8 , 3 , 8 , 2
(a) 50
(b) 70
(c) 60
(d) 55
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Answer: B
8. Calculate the variance from the following data .
3 , 6 , 5 , 2 , 4
(a) 3
(b) 2
(c) 2.2
(d) 2.5
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Answer: B
9. Calculate the variance for the following data :
2 , 5 , 6 , 8 , 9
(a) 3
(b) 4
(c) 6
(d) 5
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Answer: C
10. The variance of the seven observations 6 , 7 , 10 , 12 , 13 , 8 , 14 is :
(a) 9
(b) 9.25
(c) 8.50
(d) 8.29
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Answer: D