Question

The mean of 12 observations is 24 if each observation is divided by 3 then find the new mean

Answer 1

Answer:

12 * 24 / 3 = 12 * 8 = 96

Step-by-step explanation:

$12 \times 24 \div 3 = 12 \times 8 = 96$

Answer 2

The new mean is 8

Step-by-step explanation:

$Average = \frac{\text{Sum of all observations}}{\text{No. of observations}}$

The mean of 12 observations is 24

So, $24 = \frac{\text{Sum of 12 observations}}{12}$

$24 \times 12 = \text{Sum of 12 observations}$

$288 = \text{Sum of 12 observations}$

each observation is divided by 3

So, $Mean = \frac{\frac{1}{3}(288)}{12}$

$Mean = 8$

Hence the new mean is 8

#Learn more:

Find the average of 12 number if first 8numbers average is 21 find the average of last 4 numbers

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