Question

The mean of 18 observations is 125. If each observation is decreased by 10, then find the new mean of the

data.​

Answer 1

Step-by-step explanation:

Now, given

Mean if 18 observations = 125

Sum of 18 observations =125×18=2250

If 10 is decreased from each number then total amount reduced = 10×18=180

Now ,sum = 2250-180=2070

Now New mean =

$\frac{2070}{18}$

=115 (Ans)

Hope HELPFUL

Answer 2

Answer:

115 will be the answer hope it's helpful to you