SOLUTION: When you open a bottle of Chugga-Cola, you have a 20% chance of finding a coupon (under the cap) good for a free one-ounce bag of HyperChips. What is the probability that you will
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-> SOLUTION: When you open a bottle of Chugga-Cola, you have a 20% chance of finding a coupon (under the cap) good for a free one-ounce bag of HyperChips. What is the probability that you will
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Question 1186187: When you open a bottle of Chugga-Cola, you have a 20% chance of finding a coupon (under the cap) good for a free one-ounce bag of HyperChips. What is the probability that you will find two or more of these coupons in a random sample of ten cans of Chugga-Cola?
Write your answer as a decimal, rounded to three significant figures.
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When you open a bottle of Chugga-Cola, you have a 20% chance of finding a coupon (under the cap) good for a free
one-ounce bag of HyperChips. What is the probability that you will find two or more of these coupons
in a random sample of ten cans of Chugga-Cola?
Write your answer as a decimal, rounded to three significant figures.
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It is a binomial distribution probability problem.
- number of trials n = 10;
- number of success trials k >= 2;
- Probability of success on a single trial p = 0.2.
We need calculate P = P(n=10; k>= 2; p=0.2) = .
To facilitate calculations, I use an appropriate online (free of charge) calculator at this web-site
https://stattrek.com/online-calculator/binomial.aspx
It provides nice instructions and a convenient input and output for all relevant options/cases.
P(n=10; k>= 2; p=0.2) = 0.6241903616, or 0.624 (rounded), or 62.4%. ANSWER
