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The results of a test given to a group of students are n...
Mathematics, 29.05.2020 05:00 LEXIEXO
Please help! Ill mark you brainliest!
The results of a test given to a group of students are normally distributed with a mean of 71. In the test, 85% of students scored at less than 80. To pass the test a student must score at least 65.
a) find the standard deviation of the score
b) find the probability that a student chosen at random passes the test
Answers: 3
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