Math Problem Statement
Find the indicated probabilities using the geometric distribution, the Poisson distribution, or the binomial distribution. Then determine if the events are unusual. If convenient, use the appropriate probability table or technology to find the probabilities. Fifty dash nine percent of U.S. adults oppose hydraulic fracturing (fracking) as a means of increasing the production of natural gas and oil in the United States. You randomly select seven U.S. adults. Find the probability that the number of U.S. adults who oppose fracking as a means of increasing the production of natural gas and oil in the United States is (a) exactly three, (b) less than four, and (c) at least three. Question content area bottom Part 1 (a) Upper P left parenthesis 3 right parenthesisequals select: 0.203 0.203 (Round to three decimal places as needed.) Part 2 (b) Upper P left parenthesis less than four right parenthesisequals select: 0.255 0.255 (Round to three decimal places as needed.) Part 3 (c) Upper P left parenthesis at least three right parenthesisequals select: 0.947 0.947 (Round to three decimal places as needed.) Part 4 Which of the events are unusual? Select all that apply. A. The event Upper P left parenthesis 3 right parenthesis is unusual. B. The event Upper P left parenthesis less than four right parenthesis is unusual. C. The event Upper P left parenthesis at least three right parenthesis is unusual. D. None of the events are unusual.
Solution
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Math Problem Analysis
Mathematical Concepts
Probability
Binomial Distribution
Formulas
Binomial probability formula
Theorems
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Suitable Grade Level
Advanced High School
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