Question

A sample of 15 boy scouts was selected and their weights (in pounds) were recorded in...

A sample of 15 boy scouts was selected and their weights (in pounds) were recorded in the table below. Construct a frequency distribution to answer the following questions. Use a class width of 10, starting with the data value 95 to create five classes.

95 120 137 124 117

108 134 136 123 106

130 110 100 120 140

What is the frequency of the second class?

What is the frequency of the third class?

Homework Answers

Answer #1

In frequency column, find how many numbers lies in that interval.

In Class 95 - 104, observation lies in this class = 95

In Class 105 - 114, observation lies in this class = 100,106,108,110

In Class 115 - 124, observation lies in this class = 120, 124 , 117 123 , 120

In Class 125 - 134 , observation lies in this class = 134 , 130

In Class 135 - 144, observation lies in this class = 136 , 137 , 140

Class Frequency
95 - 104 1
105 - 114 4
115 - 124 5
125 - 134 2
135 - 144 3

Frequency of second class = 4

Frequency of third class = 5

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