Answer
z = $\frac{x-μ}{σ}$ = $\frac{600-488}{114}$ = 0.98
z = $\frac{x-μ}{σ}$ = $\frac{500-488}{114}$ = 0.11
Using table 4, we have:
a. P(z < 0.98) = 0.8365 = 83.65%
b. P(z > 0.11) = 1 = P(z < 0.11) = 1 - 0.5438 = 0.4562 = 45.62%
To get number of scores, we multiply sample size and percentage
45.62% x 1000 $\approx$ 456 scores
Work Step by Step
as given above