A data set ? consists of 300 observations of a continuous variable ? that have been grouped into 5 classes as follows; Class 1: 1.0 to 1.4 40 Class 2: 1.4 to 1.6 80 Class 3: 1.6 to 1.7 50 Class 4: 1.7 to 2.0 90 Class 5: 2.0 to 2.2 40 a) Represent ? with an appropriately scaled bar chart. b) Determine the mean and standard deviation of X

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Chapter1: Combinatorial Analysis
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Q5: A data set ? consists of 300 observations of a continuous variable ? that have been grouped into 5
classes as follows; Class 1: 1.0 to 1.4 40
Class 2: 1.4 to 1.6 80
Class 3: 1.6 to 1.7 50
Class 4: 1.7 to 2.0 90
Class 5: 2.0 to 2.2 40
a) Represent ? with an appropriately scaled bar chart.
b) Determine the mean and standard deviation of X

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