(a) Calculate mean, median and mode from the following data.

Question

Class Interval	Frequency
3-4	3
4-5	7
5-6	22
6-7	60
7-8	85
8-9	32
9-10	8

(b) Calculate the coefficient of variation from the data given above.

04 Aug 2023

Answer :

Word Count : 881

**(a) Calculation of Mean, Median, and Mode:**

To calculate the mean, median, and mode of the given data, we first need to calculate the midpoint of each class interval. The midpoint is the average of the lower and upper limits of the interval.

Midpoint (x) = (Lower Limit + Upper Limit) / 2

Here's how we calculate the mean, median, and mode step by step:

**1. Calculate Midpoints:**

Class Interval Midpoint (x) Frequency
3-4 3.5 3
4-5 4.5 7
5-6 5.5 22
6-7 6.5 60
7-8 7.5 85
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