Answer to Question #146987 in Statistics and Probability for Andrea Wandas

Question

Mr.Escalona administired a 50 item to 345 students.The mean and standard deviation if the test is 35 and 5 respectively.Assuming it is normally distributed,find the approxiamate number of students who scored the ff.
a.more than 40
b.less than 30
c.between 32 and 38
d.exactly 45

Answer 1

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