Question

please answer this 3 questions​

Answer 1

8. To calculate the mean of grouped data the first step is to determine the midpoint of each interval for class this mid-points must then be multiplied by the frequency of the corresponding classes in the sum of the products divided by the total number of the values will be the value of the mean

9. Ans in Pic

10. The first 9 prime numbers are 2 3 5 7 11 13 17 19 and 23 year 5th term is 11 so the median of the first 9 Prime is 11

Answer 2

Answer:

8) To calculate the mean of grouped data, the first step is to determine the midpoint (also called a class mark) of each interval, or class. These midpoints must then be multiplied by the frequencies of the corresponding classes. The sum of the products divided by the total number of values will be the value of the mean.

9) answer in photo.

10) The first nine prime numbers are 2, 3, 5, 7, 11, 13, 17, 19 and 23. Here, 5th term is 11. So, the median of the first nine prime numbers is 11.