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

8

Step-by-step explanation:

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

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

Divide both sides by 48:

Reciprocal of both sides:

Thus, there are 8 scores in the population size.

And we're done!

8

Step-by-step explanation:

mean=(total)/(number of terms )

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

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.