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MCQ
Scores in a class are: 60 appears 2 times, 70 appears 3 times, and 80 appears 5 times. What is the mean score?
Unit-4 Data and Anaylsis
A 73
B 70
C 75
D 80
Explanation

Total is 60*2 plus 70*3 plus 80*5, which equals 730, and dividing by 10 students gives a mean of 73.

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