11.6% of the population is 65 or older. Find the probability that the following number of persons selected at random from 50 people are 65 or older. The probability that at least 3 are 65 or older is (Round to three decimal places as needed.)

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Q: According to a report done by S&J Power, the mean lifetime of the light bulbs it manufactures is 45…

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Q: According to a report done by S&J Power, the mean lifetime of the light bulbs it manufactures is 45…

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A: Formula  Margin of error =E E=tc× s/√n Confidence interval=( x̄ ± E )