Question

The mean of the following data is

x 5 10 15 20 25 30
f 4 5 3 2 3 3


Please answer fast

Answer 1

xf = 20+50+45+40+75+90 = 320
f = 4+5+3+2+3+3 = 20
Mean = xf/f = 320/20 = 16

Answer 2

Step-by-step explanation:

Mean of the data given is =

Summation (f.x) / Sum of frequency.

(5×4 + 10×5 + 15×3 + 20×2 + 25×3 + 30×3)/(4 + 5 + 3 +2 + 3 + 3)

= (20 + 50 + 45 + 40 + 75 + 90)/20

= 320 / 20

= 16

Hence, the mean = 16.