Question

The mean of 10, 7, 13, 20,15 is​

Answer 1

Answer:

mean=sum of observation ÷no of observation

(10+7+13+20+15)÷ 5

65÷5=13

Answer 2

mean= (10+7+13+20+15)/5 = 65/5 = 13

mean = 13

  formula = sum of all values /no.of values