Question

In a family,ages (in years) of members; Krishna, Radhika, Niharika and Nikhil are 44, 39, 17, and 12. (1) Find the Arithmetic mean of their ages. (2) what were their ages 5 years before? Find their mean age. (3) can you see a relationship between the change in mean and the number of years

Answer 1

Answer:1.28

2.23

3.no

Step-by-step explanation:

Let us find the mean of the family members at present at first...

mean=sum of all observations/number of observations

=44+39+17+12/4

=112/4

=28

now the second one....

44-5=39......39-5=34....17-5=12.....12-5=7

mean=39+34+12+7/4

=92/4

=23

No I cannot see any relationship

Answer 2

Answer:

sorry i also don't know because I also have confusion

Step-by-step explanation:

please mark me as brainlist