Question

Mpho bought 10 hats in 2017 how old is mpho?

Answer 1

Given : Age group ,  Average number of Hats per person in 2017 , average spending on Hats in 2017

Age Group  Average Hats per person   Average Spend per person

10 - 20                       6                              R100

20 - 30                      12                             R200

30 - 40                      10                             R500  

40 - 50                      5                              R400

Mpho bought 10 hats in 2017

To Find :  How old is Mpho?

10 - 20

20 - 30  

30 - 40  

40 - 50  

We can not say

Solution:

We can not say is Correct answer

First thought goes that Mpho is 30-40 years old as  Average Hats per person bought in that group = 10  

and Mpho also bought 10 Hats

But That is Average Hats per person bought  not exact Hat

Example : There can be 2 person in 30-40 age group

1 Bought 9 hats and other 11 hats

Then Average Hats per person bought = 10  but no one bought 10 hats

Similarly in 20 - 30   can be two person

one bought 10 and another bought 14 hats hence average = 12 hat

but some one bought exactly 10

Hence We can not determine how old is Mpho

We can not say is CORRECT choice

Learn More:

mean of a raw data is more accurate than the mean of a grouped ...

brainly.in/question/16925790

mean of a raw data is more accurate than the mean of a grouped ...

brainly.in/question/16918428