Business, 03.08.2021 17:40 therealrg10
In a recent year, the scores for the reading portion of a test were normally distributed, with a mean of 23.3 and a standard deviation of 6.4 . Complete parts (a) through (d) below.
(a) Find the probability that a randomly selected high school student who took the reading portion of the test has a score that is less than 18 . The probability of a student scoring less than 18 is nothing . (Round to four decimal places as needed.)
(b) Find the probability that a randomly selected high school student who took the reading portion of the test has a score that is between 19.9 and 26.7 . The probability of a student scoring between 19.9 and 26.7 is nothing . (Round to four decimal places as needed.)
(c) Find the probability that a randomly selected high school student who took the reading portion of the test has a score that is more than 36.4 . The probability of a student scoring more than 36.4 is nothing . (Round to four decimal places as needed.)
(d) Identify any unusual events. Explain your reasoning. Choose the correct answer below.
A. None of the events are unusual because all the probabilities are greater than 0.05.
B. The events in parts left parenthesis a right parenthesis and left parenthesis b right parenthesis are unusual because its probabilities are less than 0.05.
Answers: 3
Business, 22.06.2019 14:30
The state in which the manufacturing company you work for is located regulates the presence of a particular substance in the environment to concentrations ≤ x. recently-released, reliable research endorsed by the responsible federal agency conclusively demonstrates that the substance poses no risks at concentrations up to 5x. your company has asked you to consider designing a new process with a waste discharge stream containing up to 2x of the substance. based on the stated conditions, describe this possible.
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Business, 22.06.2019 19:50
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Predict how the price of athletic shorts would change if schools banned their use
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Business, 23.06.2019 18:10
In milton friedman's social responsibility of business is to increase its profits, what analogy does dr. friedman draw between trade union wages and corporations' decisions based on social responsibilities?
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In a recent year, the scores for the reading portion of a test were normally distributed, with a m...
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