Math, asked by Stoneville, 10 months ago

Maths is not meant fo everyone.

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Answered by somaroyghytsk

0

Answer:

I think so d. the mean would decrease by 10 points

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Thanks

step by step explanation :

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Answered by kamleshsingh95603546

0

Answer:

d. the mean would decrease by 10 points

Step-by-step explanation:

let x be the mean and y the no. of terms

mean

= x*y/y

=x

all scores sub by 10

mean

=(x-10)y/y

=x-10

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