The following is a hypothetical distribution of exam scores. Calculate the mean. Note: You must first select the correct mean formula.
Grade
100
78
89
92
55
90
80
65
88
What will be an ideal response?
The equation that should be used is X-bar = ?x/N.
This gives X-bar = 832 ÷ 10 for a class average of 83.20.
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What will be an ideal response?
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