Question

The mean of the 10observations is 8.5 .If each obsetvation in multipied by 2 then what is the new mean

Answer 1

Answer:

Step-by-step explanation:

Let the sum of all observation be x.

Mean = Sum of all observation/

Total number of observation

=> 8.5 = x/10

=> x = 8.5*10

=> x = 85

If each observation is multiplied by 2,

So, 85*2 = 170

Thus, sum of all observation becomes 170.

Now, new mean = 170/10

=> 17.