Use the normal approximation to the binomial distribution, unless otherwise indicated. 1. It is estimated that 62% of television viewers “channel surf” during commercials. A market-research firm surveyed 1500 television viewers. What is the probability that at least 950 of them werechannel surfing? 2.A theatre found that 7% of people who purchase tickets for a play do not show up. If the theatre’s capacity is 250 people, what is the probability that there are fewer than 20 “no shows” for a sold-out performance?
Use the normal approximation to the binomial distribution, unless otherwise indicated. 1. It is estimated that 62% of television viewers “channel surf” during commercials. A market-research firm surveyed 1500 television viewers. What is the probability that at least 950 of them werechannel surfing? 2.A theatre found that 7% of people who purchase tickets for a play do not show up. If the theatre’s capacity is 250 people, what is the probability that there are fewer than 20 “no shows” for a sold-out performance?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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Use the normal approximation to the binomial distribution, unless otherwise indicated.
1. It is estimated that 62% of television viewers “channel surf” during commercials. A market-research firm surveyed 1500 television viewers. What is the probability that at least 950 of them werechannel surfing?
2.A theatre found that 7% of people who purchase tickets for a play do not show up. If the theatre’s capacity is 250 people, what is the probability that there are fewer than 20 “no shows” for a sold-out performance?
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