SOLUTION: If the random variable z is a Standard Normal Score, what is P(-2.00 ≤ z ≤ +2.00)? How did you find this probability?

SOLUTION: If the random variable z is a Standard Normal Score, what is P(-2.00 ≤ z ≤ +2.00)? How did you find this probability?

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Question 1140431: If the random variable z is a Standard Normal Score,
what is P(-2.00 ≤ z ≤ +2.00)? How did you find this
probability?
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
From the cumulative normal distribution table,
.

=
= .....by symmetry of the normal distribution
=
=

=
=
= ->answer

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