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Q 10.

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The Practice of Statistics for AP

Found in: Page 22

Book edition 4th

Author(s) David Moore,Daren Starnes,Dan Yates

Pages 809 pages

ISBN 9781319113339

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Short Answer

Spam Email spam is the curse of the Internet. Here is a compilation of the most common types of spam:
(a) What percent of spam would fall in the “Other” category?
(b) Display these data in a bar graph. Be sure to label your axes and title your graph.
(c) Would it be appropriate to make a pie chart of these data? Explain.

Part (a) The percentage of other spam is $7 %$

Part (b) The following is a bar chart.

Part (c) Pie chart can also be drawn.

See the step by step solution

Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Part (a) Step 1: Given Information

Given data on the proportion of spam and their type

Type of spam	Percent
Adult	19
Financial	20
Health	7
Internet	7
Leisure	6
Products	25
Scams	9
Other	?

Part (a) Step 2: Concept

The distribution of a category variable is displayed using pie charts and bar graphs. Any set of quantities measured in the same units can be compared using bar graphs. It's a good idea to ask yourself, "What do I see?" when looking at any graph.

Part (a) Step 3: Explanation

The above information is listed in the following table.

Since the total percentage will add up to $100$ , the percentage of other spam is $100 - 19 + 20 + 7 + 7 + 6 + 25 + 9 = 100 - 93 = 7$

Hence, the percentage of other spam is $7 %$

Type of spam	Percent
Adult	19
Financial	20
Health	7
Internet	7
Leisure	6
Products	25
Scams	9
Other	?

Part (b) Step 1: Explanation

The bar chart is drawn in excel by selecting the two columns of the above table.

Part (c) Step 1: Explanation

When a phenomenon is broken down into sub-events and each event is represented in the diagram by a sub-component, the pie chart is utilized. Because there is no missing data, each category's number of spam is represented as a sector in a pie graphic.

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