Question

2. A sample with a mean of \( M=7 \) has \( \Sigma X=63 \). How many scores are in the sample?

Answer 1

Final answer:

The number of scores in the sample can be determined by dividing the sum of scores
`(\( \Sigma X \))` by the mean
`(\( M \))`. In this case, with a mean
`(\( M \))` of 7 and a sum of scores
`(\( \Sigma X \))` of 63, the number of scores in the sample is
`\( (63)/(7) = 9 \)`. Therefore, there are 9 scores in the sample.

Step-by-step explanation:

To find the number of scores in the sample, you can use the formula:

`\[ \text{Number of scores} = (\Sigma X)/(M) \]`

Substituting the given values, where
`\( \Sigma X = 63 \)` and
`\( M = 7 \)`, you get:

`\[ \text{Number of scores} = (63)/(7) = 9 \]`

This calculation indicates that there are 9 scores in the sample.