Uriah W.

asked • 04/05/16

The scores on a practical test are normally distributed. If the test has a mean of 200 and a standard deviation of 20, what is the probability that a person who

A. 68%
B. 98%
C. 79%
D. 99%

1 Expert Answer

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Kenneth S. answered • 04/05/16

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The statement of the question was chopped off before the punch line was given to us.
Re-submit your question, please.
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Uriah W.

Oh yes i see now thank you for bringing that to my attention i didn't notice, i just copied and paste, i guess my question exceed the amount of characters for the text box but the rest of the question is as follow:who takes the test will score between 180 and 220?
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04/07/16

Kenneth S.

68% of the data in a normal standard distribution lies between -1 std. deviation and +1 std. deviation, which is the situation here.
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04/07/16

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