Q.17
Following are the ages (in years) of 10 teacher
in a school.
23, 35, 32, 22, 25, 40, 42, 36, 45, 33

September 8, 2021

By Claire

2 thoughts on “<br />Q.17<br />Following are the ages (in years) of 10 teacher<br />in a school.<br />23, 35, 32, 22, 25, 40, 42, 36, 45, 33<br /”

1. Answer:

   Solution :

   1) age of the oldest teacher=54 years

   age of the youngest teacher=23 years

   2)Range=54-23=31 years

   3)mean=sum of ages/number of people

   mean=32+41+28+54+35+26+23+33+38+401032+41+28+54+35+26+23+33+38+4010

   mean=350/10=35 years.

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2. 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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