JEE MATHS UNIT 13
QUIZ NO 4
TOTAL QUESTIONS = 20
1. The mean of the data 10, 20, 30, 40, 50 is
A. 30
B. 35
C. 25
D. 40
2. The variance of the data 2, 4, 6, 8 is
A. 5
B. 6
C. 4
D. 3
3. The standard deviation of the data 1, 2, 3, 4, 5 is
A. sqrt(2)
B. sqrt(3)
C. 2
D. 1
4. The probability of getting an even number when a die is rolled is
A. 1/2
B. 1/3
C. 2/3
D. 1/6
5. The median of the data 1, 3, 5, 7, 9 is
A. 5
B. 6
C. 7
D. 4
6. The range of the data 5, 10, 15, 20 is
A. 15
B. 10
C. 20
D. 5
7. The mode of the data 3, 3, 5, 5, 5, 7, 7 is
A. 3
B. 5
C. 7
D. 6
8. The probability of drawing a red card from a standard deck of 52 cards is
A. 1/2
B. 1/4
C. 1/13
D. 1/26
9. If P(A) = 0.4 and P(B) = 0.5, and A and B are independent events, then P(A ∩ B) is
A. 0.2
B. 0.4
C. 0.9
D. 0.5
10. The mean of the first 10 natural numbers is
A. 5.5
B. 6
C. 4.5
D. 5
11. The probability of getting a sum of 7 when two dice are rolled is
A. 1/6
B. 1/12
C. 5/36
D. 1/36
12. The number of ways to arrange the letters in the word "STATISTICS" is
A. 5040
B. 2520
C. 15120
D. 30240
13. The probability of getting at least one head in three coin tosses is
A. 7/8
B. 1/8
C. 1/4
D. 1/2
14. The mode of the data 4, 4, 6, 6, 6, 7, 8 is
A. 4
B. 6
C. 7
D. 8
15. The mean of the data 15, 20, 25, 30 is
A. 25
B. 20
C. 30
D. 15
16. The probability of selecting a king or a queen from a standard deck is
A. 2/13
B. 1/13
C. 1/26
D. 3/13
17. The variance of the first 5 natural numbers is
A. 2
B. 2.5
C. 1.5
D. 3
18. The standard deviation of the data 6, 8, 10, 12 is
A. 2
B. 3
C. 4
D. 5
19. The probability of selecting a vowel from the English alphabet is
A. 5/26
B. 4/26
C. 6/26
D. 7/26
20. The median of the dataset 2, 4, 6, 8, 10 is
A. 6
B. 7
C. 8
D. 5
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