Dana Dutch
Math 115 Check Point
Week 8
Section 8.1
16.
26, 71, 33, 69, 71, 25, 75
add the total numbers up and your answer is 370. Divide 370 by 7 and your answer is
52.857 or 52.86
22.
8, 2, 3, 3, 4, 9, 9, 3
The mode is 3 and 9
26.
The enrollments in the four elementary schools of a district are 278,
153, 215, and 198 students. What is the mean enrollment?
278+153+215+198= 844 /4=211
40.
In a certain math class, you take four tests and the final, which counts as two tests.
Your grade is the average of the six tests. At the end of the course, you compute
both the mean and the median.
(a)
You want to convince the teacher to use the mean to compute your average.
Write a note to your teacher explaining why this is a better choice. Choose
numbers that make a convincing argument.
Dear Mrs. Tillman
I am writing to you to discuss my grades. Here I am showing my grades as 99, 98, 85,80,90, 60.
Now when I add them together 85.67 gpa I would like for you to drop my lowest grade if
possible. I think I have enough time to pull another grade in the upper 80's to lower 90's. Would
you consider this. I think I have the chance to pull my gpa up.
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 Spring '10
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 percent increase, convincing argument, Dana Dutch

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