3 years ago

If z is a standard normal variable, find the probability.

Mathematics

2 answers:

Karo-lina-s [1.5K]3 years ago

4 0

Answer:

0.7557

Step-by-step explanation:

In this question use the Table of Standard Normal Probabilities for Negative z-scores and the Table of Standard Normal Probabilities for Positive z-scores

Where z=2.27 NORMDIST(2.27)=0.9884 (read from table for positive z-scores)

Where z=-0.73 NORMDIST(-0.73)=0.2327 (read from table for negative z-scores)

You know P(-0.73<z<2.27)= 0.9884-0.2327=0.7557

konstantin123 [22]3 years ago

3 0

Answer:

0.7557

Step-by-step explanation:

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