Phishing scams Spam related 0.89% 0.12% Pornography Direct products Others 5.49% 5% 14% Healthcare Finance 41% 31% Gambling 2.23% Note: Results do not add to 100% because of rounding.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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In a survey of different spam categories conducted by Clearswift, the percent of each type of spam was as shown in the graph. Suppose 3 spam messages are selected at random. Find the probability (written as a decimal) that the following will occur. (Assume that messages can be regarded as independent events. Round your answer to four decimal places.)

none of them was about gambling
Phishing scams
Spam related
0.89%
0.12%
Pornography
Direct products
Others
5.49%
5%
14%
Healthcare
Finance
41%
31%
Gambling
2.23%
Note: Results do not add to 100% because of rounding.
Transcribed Image Text:Phishing scams Spam related 0.89% 0.12% Pornography Direct products Others 5.49% 5% 14% Healthcare Finance 41% 31% Gambling 2.23% Note: Results do not add to 100% because of rounding.
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