A sample of n = 5 scores has a mean of m = 8. one new score is added to the sample and the new mean is calculated to be m = 9. what is the value of new score?

Respuesta :

When = n = 5, m = 8 , total = 5 x 8 = 40

When n = 6, m = 9, total = 6 x 5 = 54

The new number = 54 - 40 = 14


Answer: The new value is 14.

The value of new score is 14.

What are mean scores?

The mean, or more formally, the arithmetic mean, is what most people mean when they use the term average.

Calculating the mean is straightforward. Just add up all the numbers in the list that you’re considering, and then divide the total by the number of numbers - that is, the number of items in the list.

Given

Mean m = 8 and Sample of n  = 5

Multiply m and n

mn =  8 × 5

mn = 40

Now from the question we have given that one new score is added to the sample and the new mean is calculated to be m = 9

Therefore, m = 8 + 1 = 9

n = 5 + 1 = 6

New mn = 9 × 6 = 54

The difference between these mn's is the value of the new score.

= 54 - 40 = 14

Hence, The value of new score is 14.

Find out more information about mean scores here:

https://brainly.com/question/3183994

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