Question

Maths standard 8th answers faster it is important ​

Answer 1

Answer:

1) The formula for mean is

Mean = {Sum of Observation} / {Total numbers of Observations}

2) The mean of first six odd numbers is 6.

3) 2x/3 = 6 , x = 9

Step-by-step explanation:

1) The mean formula is given as the average of all the observations. It is expressed as Mean = {Sum of Observation} ÷ {Total numbers of Observations}

2) First six odd numbers are 1,3,5,7,9, 11

Sum of odd number = 1 + 3 + 5 + 7 + 9 + 11 = 36

Total numbers of Observations = 6

Mean = {Sum of Observation} ÷ {Total numbers of Observations}

= 36÷  6

= 6

The mean of first six odd numbers is 6.

3) 2x/3 = 6

2x = 6(3)

2x = 18

x = 18/2

x = 9