If Z denotes the standard normal random variable , then P( -.58 < Z < .23) ?

sondestiny120g

sondestiny120g

Answered question

2022-08-12

If Z denotes the standard normal random variable , then
P ( .58 < Z < .23 )?

Answer & Explanation

Evelin Castillo

Evelin Castillo

Beginner2022-08-13Added 12 answers

The z-score is the number of standard deviations by which an event is occurring is over the mean calculated value. Values above the mean have positive z-scores, while values below the mean have negative z-scores.
P ( Z < 0.58   o r   Z > 0.23 ) = 0.69 P ( Z < 0.58 ) = 0.28096 P ( Z > 0.23 ) = 0.40905 P ( 0.58 < Z < 0.23 ) = 0.31
Therefore, the requiblack probability is 0.31.

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