Question

masks of 12 Students are 4,21, 13, 17,5,9,
10,20,19,12,20, 14 Find the mean.​

Answer 1

Answer:

see the above pic....

Step-by-step explanation:

hope its helps you...

Answer 2

Step-by-step explanation:

arithmetic mean=sum of the observation divided by number of observations avg

= (4+12+13+17+5+9+10+20+19+12+20+14)/12

avg = 164/12

mean = 13.66