In a recent year, the total scores for a certain standardized test were normally distributed, with a mean of 500 and a standard deviation of 10.4

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In a recent year, the total scores for a certain standardized test were normally distributed, with a mean of 500 and a standard deviation of 10.4

In a recent year, the total scores for a certain standardized test were normally distributed, with a mean of 500 and a standard deviation of 10.4. Find the probability that a randomly selected medical student who took the test had a total score that was more than 530.

The probability that a randomly selected medical student who took the test had a total score that was more than 530 is _______

math Statistics-And-Probability

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Answer 1

Answer #1

Solution :

Given that ,

mean = = 500

standard deviation = = 10.4

P(x > 530) = 1 - P(x < 530)

= 1 - P[(x - ) / < (530 - 500) / 10.4)

= 1 - P(z < 2.88)

= 1 - 0.998

0.0020

The probability that a randomly selected medical student who took the test had a total score that was more than 530 is 0.0020

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Answer 2

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In a recent year, the total scores for a certain standardized test were normally distributed, with a mean of 500 and a standard deviation of 10.4

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