Question

The mean of 16,12,8,p,11,10and9is 12 find the value of p

Answer 1

mean=Sum of all observation/total no of observation

since mean is given=12

12= (16+12+8+11+10+p+9)/7

12=(56+p)/7

12×7=56+p

84=56+p

p=84-56

p=28