Bar chart and expected frequencies for each class

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Reference no: EM1315573

Advertisers need to know which age groups are likely to see their ads. Purchasers of 120 copies of Cosmopolitan are shown by age group, (a) Make a bar chart and describe it. (b) Calculate expected frequencies for each class.

Cosmo:

Purchaser Age

Units Sold

18-24

38

25-34

28

35-44

19

45-54

16

55-64

10

65+

9

Total

120

Reference no: EM1315573

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