Priyanka received the following scores in her Mathematics test: 100,80,100,67,60,70.Find her mean score and the range
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Mean = sum of all observations/total number of observations
Mean = 100 + 80 + 100 + 67 + 60 + 70 / 6
Mean = 477 / 6
Mean = 159/2
Mean = 79.5
Range = Highest - Lowest
Range = 100 - 60
Range = 40
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answer is in the given picture
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