For Kaley to be accepted into her favorite college, she will have to earn an entrance exam score at least 2 standard deviations above the mean. Assume entrance exam scores are normally distributed, with a mean of 750 and a standard deviation of 40. What exam score does Kaley need to be accepted at her favorite college?

Question

Mathematics

Josephine Rollins

11 April, 09:51

For Kaley to be accepted into her favorite college, she will have to earn an entrance exam score at least 2 standard deviations above the mean. Assume entrance exam scores are normally distributed, with a mean of 750 and a standard deviation of 40. What exam score does Kaley need to be accepted at her favorite college?

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Answers (1)

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Jorge Dodson · Answer 1

Step-by-step explanation:

I believe the answer is going to be 830 or higher. Kaleys score needs to be 2 standard deviations above the mean and one standard deviation is 40 so 40*2=80. The mean is 750 + 80 = 830 is what she would need to get in.