Question

A population has a mean µ = 6 and ∑x = 48. How many scores are in the population?

Answer 1

Answer:

8

Step-by-step explanation:

mean=(total)/(number of terms )

number of terms=total/mean=∑x/μ=48/6=8

Answer 2

Answer:

8

Step-by-step explanation:

Recall the formula for the population mean of a data set:

$\mu=\frac{\sum x}{N}$

We already know that μ is 6 and the sum is 48. Substitute:

$6=\frac{48}{N}$

Divide both sides by 48:

$\frac{1}{8}=\frac{1}{N}$

Reciprocal of both sides:

$N=8$

Thus, there are 8 scores in the population size.

And we're done!