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2. If the mean of the following data is 18.75, then the value of p is
A. 18.5
B. 20
C. 30
D. 15
3. The mean of the following data is: 45, 35, 20, 15, 25, 40
A. 15
B. 25
C. 30
D. 35
4. The mean of 5 observations x, x + 2, x + 4, x + 6 and x + 8 is 11, then the value of x is:
A. 6
B. 4
C. 7
D. 11
6. The mean of first ten even natural numbers is
A. 100
B. 11
C. 30
D. 10
8. Which measure of central tendency takes in account all the data?
A. Mean
B. Median
C. Mode
D. All of the above
17. If the mean of the following distribution is 6, find the value of 'p'.
A. 8
B. 7
C. 12
D. 6
18. If there are two class intervals 10-20 and 20-30, then in which interval will 20 fall?
A. In both, 10-20 and 20-30
B. 20-30
C. 10-20
D. Neither in 10-20 nor 20-30
19. Which of the following measures of central tendency takes into account all the observations?
A. Mean
B. Median
C. Mode
D. All of the above
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