Question

Find the mean of weight 29,30,31,32,33
No of children 02,01,04,03,05

Answer 1

Answer:

32.2 kg

Step-by-step explanation:

First,

∑fi = Sum of all the frequencies = 2+1+4+3+5 = 15

Now,

Mean = $\frac{Sum of all the observations}{Sum of all frequencies}$ = $\frac{29+29+30+31+31+31+31+32+32+32+35+35+35+35+35}{15}$

Therefore, Mean = 32.2 kg