Question

The age (in years) of 10 teachers of a school is as follows: 42, 31, 29, 32, 54, 36, 35, 28, 45 and 25.
c. What will be the new
mean age if a new teacher of age 32 years is employed?​

Answer 1

Answer:

Age of oldest teachers=54 yerars

Age of youngest teachers = 23 years

∴ Range = (54-23) years =31 years