Question

draw the mean from the following group & ungroup data.
20,30,21,28,30,27,28,31,26,32, 19,21,28,20,20,30,20,21,19,20, 20,21,19,22,24,23,24,24,23.31,
22,24,30,23,23,24,30,27,25, 21,26,27,25,26,31,26,25,27,26, 31
Answers​

Answer 1

Answer:

add all the no.s and divide by the total and we'll get the arithmetic mean