Question

Q.1 The ages in years of 10 teachers of a school are: 32, 41, 28, 54, 35, 26, 23, 33, 38, 40
(i) What is the age of the oldest teacher and that of the youngest teacher? (ii) What is the range of the ages of the teachers?
(iii) What is the mean age of these teachers?

Answer 1

Step-by-step explanation:

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

Answer :-

Arranging data in ascending order

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

Age of oldest teacher = 54 Years.

Age of youngest teacher = 23 years.

(ii) what is the range of the ages of the teachers?

Answer :-

Range = Age of oldest teacher − Age of youngest teacher

= 54 − 23

= 31 years.

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

Answer :-

Mean age = (   )/(  ℎ)

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

= 350/10

= 35 years.

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