Introducing Statistics: Why Be Normal
AP Statistics · Flashcards
AP STATISTICS · FLASHCARDS
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QUESTION
What is a z-score?
QUESTION
What is the function used to standardize a normal variable?
QUESTION
Find the z-score for
x
=
15
x = 15
x
=
15
, given
μ
=
15
\text{μ} = 15
μ
=
15
and
σ
=
5
\text{σ} = 5
σ
=
5
.
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ANSWER
0. Using
z
=
15
−
15
5
=
0
z = \frac{15-15}{5} = 0
z
=
5
15
−
15
=
0
.
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