Question

The ages in years of 10 students of a school are 32,41,28,54,35,26,23,33,38,40 (1) what is the age of the oldest student and that of the youngest student?
(2) what is the range of the ages of the students?
(3) what is the mean age of these students?​

Answer 1

(i) What in the age of the oldest teacher and that of the Youngest teacher ?

Answer ☞

Arranging data in ascending order

☞23, 23, 28, 32, 33, 35, 38, 40, 41, 54

Age of oldest teacher is = 54 Years.

And the Age of youngest teacher is = 23 years.

(ii)What is the range of the ages of the students?

Answer ☞

$Range = Age \: of \: oldest \: teacher − Age \: of \: \\ youngest \: teacher$

☞54 − 23

☞31 years.

(iii) What is the mean age of these teachers?

Answer☞

= (23 + 26 + 28 + 32 + 33 + 35 + 38 + 40 + 41 + 54)/10

= 350/10

= 35 years.