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Normal Distribution · Question 29 of 68

The figure shows the standard normal curve with the area from z = -2 to z = 0 shaded.

Question 29

EasyOriginal question

The figure shows the standard normal curve with the area from z=−2z = -2 to z=0z = 0 shaded. Given P(0<Z<2)=0.4772P(0 < Z < 2) = 0.4772, what is the shaded area?

The standard normal curve with the area from z = −2 to z = 0 shaded.
Options for question 29

Show the answer and explanation
CorrectNot quiteAnswer B

Correct answer: B

Explanation

  1. By symmetry, the area from −2-2 to 0 equals the area from 0 to 2.

  2. So it is 0.4772.

Worth noting

0.0228 is the tail beyond −2-2, outside the shaded part.

Concept
Reading a shaded area
Typical time
60 s
Your time
—
The rule this testsAreas under the curve
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