Question

The average of 15 numbers is 213.if each number is divided by 3 .the new average will be

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

i. e n=15

mean=213

we know that,

mean= sum of numbers/no. of observation

213=sum of no/15

213/15= 3195

And each number is divided by 3

3195/3= 1065

new mean= new sum of no/15

= 1065/15

=71