Question

the ages in year of 10 teachers in a school are; 32,41,28,54,35,26,23,33,38,40.
a)what is the range of ages of the teachers ?
b) what is the mean age of these teachers ?​

Answer 1

Answer:

a)31

b)

Step-by-step explanation:

range=maximum-minimum

mean=sum of all observation / no. of observation

range=54-23=31

mean=32+41+28+54+35+26+23+33+38+40/100=

=350/100

=35

range=31 mean=35

Answer 2

Answer:

Step-by-step explanation:

mean = no of total / no.of observations  

=32+41+28+54+26+23+33+38+40=350

= 350 /10 = 350 = 35 =35

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                    10         1  

ANS : Mean = 35