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The Falcon Academic Success Test (FAST) is a test for determining the likelihood of graduating from...

The Falcon Academic Success Test (FAST) is a test for determining the likelihood of graduating from UTPB. The FAST scores for students who took the FAST tests are approximately Normal with mean 500 and standard deviation of 200. What proportion of students who to the test this year had a FAST score of 450 or lower?

Group of answer choices

0.401

0.375

0.327

0.343

.305

math   Statistics-And-Probability   
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Answer #1

given mean 500 and standard deviation of 200

p ( x < = 450 )

= p ( z < (450 - 500) / 200 )

= p ( z < -0.25 )

= 0.4013

Answer : 0.401

Answer : 0.401

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