Mathematics, 24.01.2020 03:31 logan867
1.44 make-up exam: in a class of 28 students, 27 of them took an exam in class and 1 student took a make-up exam the following day. the professor graded the first batch of 27 exams and found an average score of 79 points with a standard deviation of 6.5 points. the student who took the make-up the following day scored 63 points on the exam.
a) does the new student's score increase or decrease the average?
decreases
increases
b) the new average is: (round to two decimal places)
c) does the new student's score increase or decrease the standard deviation of the scores?
decreases
increases
Answers: 1
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1.44 make-up exam: in a class of 28 students, 27 of them took an exam in class and 1 student took a...
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