3. Find the probability of selecting either a non-smoker or a woman when you select a person at random from a group composed of 20 female smokers, 35 male smokers, 25 female non-smokers, and 50 male non-smokers. Give your answer as a percent rounded to the nearest tenth of a percent.

A First Course in Probability (10th Edition)
10th Edition
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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3. Find the probability of selecting either a non-smoker or a woman when you select a person at random
from a group composed of 20 female smokers, 35 male smokers, 25 female non-smokers, and 50 male
non-smokers. Give your answer as a percent rounded to the nearest tenth of a percent.
4. In a blood testing procedure, blood samples from 6 people are combined into one mixture. The mixture
will only test negative if all the individual samples are negative. If the probability that an individual
sample tests positive is 0.08, what is the probability that the mixture will test positive? Give your answer
as a percent rounded to the nearest tenth of a percent.
Transcribed Image Text:3. Find the probability of selecting either a non-smoker or a woman when you select a person at random from a group composed of 20 female smokers, 35 male smokers, 25 female non-smokers, and 50 male non-smokers. Give your answer as a percent rounded to the nearest tenth of a percent. 4. In a blood testing procedure, blood samples from 6 people are combined into one mixture. The mixture will only test negative if all the individual samples are negative. If the probability that an individual sample tests positive is 0.08, what is the probability that the mixture will test positive? Give your answer as a percent rounded to the nearest tenth of a percent.
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