Question

find the mean of the following table​

Answer 1

Answer:

First Table: 15

Second Table: 8

Step-by-step explanation:

First table:

3 + 9 + 15 + 21 + 27 = 75

75 ÷ 5= 15

Second Table:

7 + 5 + 10 + 12 + 6= 40

40 ÷ 5= 8

Answer 2

Answer:

multiply all the observations by their frequencies

then you have to add all the number that you got now

are you have to divide the sum of the numbers by the quantity of the numbers

i.e. 15.75