Question

find the mean of prime numbers between 20 ​

Answer 1

Answer:

Mean=sum of all observations/No of total observation

=>1+3+5+7+9+11+13+17+19/10

=>85/10

=>8.5

Answer 2

Answer:

To find of prime numbers between 1 to 20.

Prime numbers between 1 and 20 are:

2,3,5,7,11,13,17 and 19.

• Mean = Sum of observation by number of Observation

=(2+3+5+7+11+13+14+17+19)÷8

=77÷8

=9.625

Hope it helps