Question

Suppose you have a normally distributed set of data pertaining to a standardized test. The mean
score is 500 and the standard deviation is 100. What is the z-score of 225 point score?

Answer 1

\(\large zscore = \frac{observation~~ -~~ mean}{standard~~ deviation}\)

Answer 2

plugin the given values

Answer 3

Ok Thanks

Answer 4

wat did u get for zscore ha ?

Answer 5

\(\large zscore = \frac{225~~ -~~ 500}{100}\)

Answer 6

-2.75