Question

Mean of 10 observation 58 in5 is Subracted from each observation them the mean of new observation is

Answer 1

Answer:

New Mean = 53.

Step-by-step explanation:

The mean of all observations is equal to the sum of the observations divided by the number of observations.

Mean = $\frac{Sum}{Number}$

58 = $\frac{x}{10}$

Currently, we do not know the sum of observations.  But, we know the mean and the number of observations.

$x = 580$

The sum of observations is 580.

Now, if 5 is subtracted from each of the observations, the new sum will be 50 lesser than it originally was.

Since each observation is reduced by 5 and there are 10 observations, a total of 50 will be subtracted from the sum.

Therefore, our new sum is 580-50 = 530.  The number of observations did not change.

Substituting these values back in the formula, we get,

New Mean = 530/10

New Mean = 53.

Answer 2

Step-by-step explanation:

Solution of the problem has been appended.