Question

Find the mean of the following data, 6.8, 15.4, 21.6, 19.2, 10.5 , 6.89, 4.02, 3.4​

Answer 1

Answer:

for this first multiply xi and fi and doing that you will get

6×5=30

12×4=48

18×p=18p

24×6=144

30×4=120

36×6=216

then add the products

⇒30+48+18p+144+120+216= 558+18p

⇒558+18p/126=21.6

558+18p = 2721.6

p=120.2

Explanation:

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