Construct a histogram and a frequency polygon

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Reference no: EM13905098

1. Construct a histogram and a frequency polygon for the following data.

Class Interval

Frequency

30-under 32

5

32-under 34

7

34-under 36

15

36-under 38

21

38-under 40

34

40-under 42

24

42-under 44

17

44-under 46

8

2. Are the advertising dollars spent by a company related to total sales revenue? The following data represent the advertising dollars and the sales revenues for various companies in a given industry during a recent year. Construct a scatter plot of the data from the two variables and discuss the relationship between the two variables.

Advertising (in $millions)

Sales (in $millions)

4.2

155.7

1.6

87.3

6.3

135.6

2.7

99.0

10.4

168.2

7.1

136.9

5.5

101.4

8.3

158.2

Reference no: EM13905098

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