Question

A marketing research company records the consumer habits of a sample of 36 families from a certain community. The table below summarizes the number of gallons of milk by these families during the last month. For these families, what is the mean number of gallons of milk consumed last month? ROUND YOUR ANSWER TO AT LEAST ONE DECIMAL PLACE

Answer 1

Total amount of milk consumed is,

`(8*0)+(15*4)+(13*7)=0+60+91=151`

Total number of families is

`36`

Hence, Mean is

`(151)/(36)=4.19444\approx4.2`

Therefore, the mean is 4.2 gallons.