(c) Find the probability that the standard is exceeded on at least two days. The probability that the standard is exceeded on at least two days is

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.2: Probability
Problem 48E: Quality Control To control the quality of their product, the Bright-Light Company inspects three...
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Dirty air: The federal government has enacted maximum allowable standards for air pollutants such as ozone. Let X be the number
of days per year that the level of air pollution exceeds the standard in a certain city. The probability distribution of X is given by
0
P(x) 0.35
x
Send data to Excel
Part 1 of 4
(a) Find P (3).
P (3)= 0.05
Part 2 of 4
1
2
3 4
0.38 0.19 0.05 0.03
(b) Find P (3 or fewer).
P (3 or fewer) = 0.97
Part: 2 / 4
Part 3 of 4
(c) Find the probability that the standard is exceeded on at least two days.
The probability that the standard is exceeded on at least two days is
x
Transcribed Image Text:Dirty air: The federal government has enacted maximum allowable standards for air pollutants such as ozone. Let X be the number of days per year that the level of air pollution exceeds the standard in a certain city. The probability distribution of X is given by 0 P(x) 0.35 x Send data to Excel Part 1 of 4 (a) Find P (3). P (3)= 0.05 Part 2 of 4 1 2 3 4 0.38 0.19 0.05 0.03 (b) Find P (3 or fewer). P (3 or fewer) = 0.97 Part: 2 / 4 Part 3 of 4 (c) Find the probability that the standard is exceeded on at least two days. The probability that the standard is exceeded on at least two days is x
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