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The mean score on a college placement exam is 500 with a standard deviation of 100. Ninety-five percent of the test takers score above what?​

Sagot :

FABELLARUBY26IN

Answer:

Correct Answer: B

Step-by-step explanation:

(B) If 95% of the area is to the right of a score, 5% is to the left. Looking for 0.05 in the body of Table A, we note the z-score of -1.645. Converting this to a raw score gives 500 - 1.645(100) = 336. [invNorm(.05, 500, 100) = 336.]

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