Question

finding quickly the average of first 20 multiple of 7

Answer 1

HEYA!!!!

Mean = sum of obs / number of observations

Sum of first 20 multiples of 7 is n (n+1) /2

= 20×21/2

= 210

Therefore, Mean of first 20 multiples 7 is 210 / 20

= 10.5..


HOPE THIS HELPS U. @MP #MAHABOOBPASHA #☺☺

Answer 2

Answer:

10.5

Step-by-step explanation:

Given,

Multiples of 7.

To Find,

The average of first 20 multiples of 7.

Mean = sum of observations / number of observations

Sum of first 20 multiples of 7 is n (n+1) /2

= 20×21/2

= 210

Therefore, Mean of first 20 multiples 7 is 210 / 20

= 10.5

#SPJ2