Question

the mean of a distribution of ten scores is 6.There are 2 scores in the distribution that equal exactly 6.You remove them.What is the mean?

Answer 1

sum of distributions=mean×no.of distributions
=6×10=60
2scores are removed which are equal to 6
so sum of distributions after removing them=
60-2(6)=60-12=48
no.of distributions Will be 10-2=8
then mean=48/8=6..

Answer 2

The mean is $6$

Given-Mean of distribution of ten scores is $6$

Find the mean

Solution-There are several kinds of mean in mathematics, especially in statistics. For a data set, the arithmetic mean, also known as arithmetic average, is a measure of central tendency of a finite set of numbers: specifically, the sum of the values divided by the number of values.

We know that,

Mean$=\frac{Sum of number of distribution}{Number of distribution}$

So,

Sum of distribution $=6\times 10\\=60$

2 Scores are removed which are equal to $6$

So, sum of distribution after.

Remaining them$=60-2(6)\\=60-12\\=48$

Number of distribution will be $10-2=8$

Then mean$=\frac{48}{8}=6$

So, the mean is $6$

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