Mathematics, 08.01.2020 07:31 Ariellelyn176
1. the expression p(z < 2.87) represents the area under the standard normal curve below a given value of z.
what is p(z < 2.87)?
a. 0.9979
b. 0.0027
c. 0.9973
d. 0.0021
2. the expression p(z > –0.87) represents the area under the standard normal curve above a given value of z.
what is p(z > –0.87)?
express your answer as a decimal to the nearest ten thousandth (four decimal places).
3. the scores on a law school entrance exam are normally distributed with a mean of 250 and a standard deviation of 50. suppose 320 students took the test.
approximately how many students scored above 284?
round your answer to the nearest whole number.
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1. the expression p(z < 2.87) represents the area under the standard normal curve below a given...
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