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Normal Distribution · Question 32 of 68

Question 32

MediumOriginal question

For the standard normal variate, P(0<Z<1.5)=0.4332P(0 < Z < 1.5) = 0.4332. What is P(Z<1.5)P(Z < 1.5)?

Options for question 32

Show the answer and explanation
CorrectNot quiteAnswer C

Correct answer: C

Explanation

  1. The area to the left of 0 is 0.5, by symmetry.

  2. P(Z<1.5)=0.5+0.4332=0.9332P(Z < 1.5) = 0.5 + 0.4332 = 0.9332.

Worth noting

0.4332 is only the part from 0 to 1.5; the whole left half comes too.

Concept
The area to the left of z
Typical time
90 s
Your time
—
The rule this testsAreas under the curve
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