Algebra ->
Probability-and-statistics
-> SOLUTION: Consider the following test scores in a class of 34 students:
56, 60, 60, 61, 62, 63, 65, 66, 70, 70, 72, 73, 74, 74, 75, 75, 78, 78, 79, 80, 81, 85, 86, 87, 88, 88, 89, 89, 90,
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Question 1202736: Consider the following test scores in a class of 34 students:
56, 60, 60, 61, 62, 63, 65, 66, 70, 70, 72, 73, 74, 74, 75, 75, 78, 78, 79, 80, 81, 85, 86, 87, 88, 88, 89, 89, 90, 94, 99, 99, 100, 100.
What is the mean of these test scores, round to at least 3 decimal places.
Answer by math_tutor2020(3817)   (Show Source):
You can put this solution on YOUR website!
Add up the values.
Then divide by the sample size n = 34.
I recommend using a spreadsheet or GeoGebra.
The command "SUM" quickly will add the values.
You should get a sum of 2666.
mean = sum/n
mean = 2666/34
mean = 78.4117647058823
mean = 78.412
Answer: 78.412 (approximate)
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