Answer the following
1. Find the mean of first 10 even natural numbers
2. Calculate the mean for the following distribution.
3. Find the median of 37, 31, 42, 43, 46, 25, 39, 45, 32
4. The following marks were obtained by the students in a test.
81, 72, 90, 90, 86, 85, 92, 70, 71, 83, 89, 95, 85, 79, 62
What is the range?
5. Find the mode of following series.
25, 23, 22, 22, 24, 27, 27, 25, 23, 22, 26, 32
6. Find the median of the following data
19, 25, 59, 48, 35, 31, 30, 32, 51. If 25 is replaced by 55, what will be the new
median.
7. The following observations have been arranged in ascending order. If the median
of the data is 63, find the value of x.
29, 32, 48, 50, x, x+2, 72, 78, 84, 95
8. Find the value of x and y in following distribution if it known that the mean of the
distribution is 1.46.
9. The mean monthly salary of 10 members of a group is Rs. 1445, one more
member whose monthly salary is Rs. 1800 has joined the group. Find the mean
monthly salary of 11 members of the group.
10. For the following data, draw a histogram and frequency polygon
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