Correct option is D
Given:
Values (X) = 19, 21, 23, 25, 27, 29, 31
Frequencies (f) = 13, 15, 16, 18, 16, 15, 13
Formula Used:
Solution:
Now,
Mean =
Thus, Mean of the data set is 25.
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Question
Find the mean of the following data:
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- 1)
The mean marks of boys in a class is 52 and that of girls is 42. The mean marks of boys and girls combined is 50. The percentage of boys in the class is:
- 2)
The mean of the probability distribution of the number obtained on throwing a die having 1 on three faces, 2 on two faces, and 5 on one face is:
- 3)
What is the mean of the following distribution?
- 4)
The arithmetic mean of the observations 28, 31, 40, 63, 57, 37, 34, 70 and 99 is:
- 5)
Correct relation for the numbers 10, 7, 8, 5, 6, 8, 5, 8, 6 is:
- 6)
If mean of a variable X is M, then mean of variable Y = (X – 4)/5 will be:
- 7)
What is the mean of the following distribution?
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- 8)
The arithmetic mean of the observations 83, 17, 62, 87, 62, 96, 86, 92 and 90 is:
- 9)
What is the mean of the following distribution?
Marks
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No. of Students
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The mode and median of a data set is 89.7 and 32, respectively. What is the mean of the data set? (Use empirical formula.)
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Similar Questions
- 1)
The mean marks of boys in a class is 52 and that of girls is 42. The mean marks of boys and girls combined is 50. The percentage of boys in the class is:
- 2)
The mean of the probability distribution of the number obtained on throwing a die having 1 on three faces, 2 on two faces, and 5 on one face is:
- 3)
What is the mean of the following distribution?
- 4)
The arithmetic mean of the observations 28, 31, 40, 63, 57, 37, 34, 70 and 99 is:
- 5)
Correct relation for the numbers 10, 7, 8, 5, 6, 8, 5, 8, 6 is:
- 6)
If mean of a variable X is M, then mean of variable Y = (X – 4)/5 will be:
- 7)
What is the mean of the following distribution?
Marks
12
22
58
79
89
No. of Students
98
74
17
28
44
- 8)
The arithmetic mean of the observations 83, 17, 62, 87, 62, 96, 86, 92 and 90 is:
- 9)
What is the mean of the following distribution?
Marks
13
27
59
61
97
No. of Students
95
57
80
98
73
- 10)
The mode and median of a data set is 89.7 and 32, respectively. What is the mean of the data set? (Use empirical formula.)
