Question

Exercise 7.1
1.
Find the average of each of the following sets.
a) 48, 23, 13, 54, 7
b) 3 kg, 47 kg, 92 kg, 28 kg
c) 178 m, 525 m, 476 m
4) 38 1,33 1,1L
e)
532.85, 363.25, 92.40, 532.80​

Answer 1

formula = sum of terms / no. of terms

a) 23+48+13+54+7=145

145/5=29

ans=29

b) 3+47+92+28=170

170/4=42.5

ans =42.5

c) 178+525+476=1179

1179/3=861.66

ans=861.66

d) 381+331+1=713

713/3=237.66

ans =237.66

e) 532.85,+ 363.25, +92.40, +532.80=1521.3

1521.3/4=1121.7

ans=1121.7