The scores on a test for children in an eighth-grade class is normally distributed with a mean of 73 and a standard deviation of 5.7. Answer the following: a) What is the probability a test score is less than 82? b) Pearl E. Gates has a test score called S. If another child in the class is picked at random, the probability that the other child has a score higher than Pearl is 0.48. Find Pearl’s test score.

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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Round all probabilities to four decimal places, standard deviation
for the sampling distribution of ?̂ to three decimal places and everything else to two decimal places.

The scores on a test for children in an eighth-grade class is normally distributed with a mean of 73 and a
standard deviation of 5.7. Answer the following:

a) What is the probability a test score is less than 82?

b) Pearl E. Gates has a test score called S. If another child in the class is picked at random, the probability
that the other child has a score higher than Pearl is 0.48. Find Pearl’s test score.

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