Question

for the calculation or arithmetic mean the class intervals should be​

Answer 1

Answer:

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.

hope it helpful to you

please mark me as brainleast

Answer 2

Answer:

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.