Question

mean of 7 observation is 16. if the six observations are 19,16,18,13,15,11, then find the seventh observation

Answer 1

Answer:20

Step-by-step explanation:let the 7th observation be x.

mean = x+19+16+18+13+15+11/7

16 = 92+x/7

92+x=16(7)

92+x=112

x=112-92

x=20