Question

The AM of a data is 10. Each observation of the data is multiplied by 2 and 3 is added to the products. AM of the results obtained is
a)23 b) 32 c) 20 d) 17 ​

Answer 1

Answer:

Step-by-step explanation:

Given  

The arithmetic mean of the data is 10. Each observation of the data is multiplied by 2 and 3 is added to the product Arithmetic mean of the results

Let there be n number of values.

So total of n values will be 10 n

Now each n value is multiplied by 2 and 3 is added to each of them

Now total will increase from 10 n to (10 x 2 + 3) n x 10

                                                  = 23 n x 10

New mean will be 23 x 10 n / 10 n

                                   = 23

give me thanks