SOLUTION: The test scores of 40 students are summarized in the frequency table below. Find the mean Score Students 50-59 5 60-69 8 70-79 10 80-89 12 90-99 5

Algebra ->  Probability-and-statistics -> SOLUTION: The test scores of 40 students are summarized in the frequency table below. Find the mean Score Students 50-59 5 60-69 8 70-79 10 80-89 12 90-99 5       Log On


   



Question 1155681: The test scores of 40 students are summarized in the frequency table below. Find the mean
Score Students
50-59 5
60-69 8
70-79 10
80-89 12
90-99 5

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Take the middle of the group, which is 55.0 etc.
55*5=275
65*8=520
75*10=750
85*12=1020
95*5=475
That sum is 3040
divide by 40 students. The mean is 76.