According to the latest Gallup Poll, 40% of American Teenagers purchase designer jeans. Assume this result is true for all teenagers. What is the probability that out of the next 8 teenagers who purchase jeans at most 1 will purchase designer jeans?
We have here given, n=8 and p =0.40
=0.1064
Therefore, the probability that out of the next 8 teenagers who purchase jeans at most 1 will purchase designer jeans=0.1064
According to the latest Gallup Poll, 40% of American Teenagers purchase designer jeans. Assume this result...
A 2005 Gallup Poll found that 7% of teenagers (ages 13 to 17) suffer from arachnophobia and are extremely afraid of spiders. At a summer camp there are 8 teenagers sleeping in each tent. Assume that these 8 teenagers are independent of each other. (a) Calculate the probability that at least 1 of them suffers from arachnophobia. (b) Calculate the probability that exactly 3 of them suffer from arachnophobia. (c) Calculate the probability that at most 3 of them suffers...
A Gallup Poll found that 7% of teenagers (ages 13 to 17) suffer from arachnophobia and are extremely afraid of spiders. At a summer camp, there are 10 teenagers sleeping in each tent. Assume that these 10 teenagers are independent of each other. (a) Calculate the probability that at least one of them suffers from arachnophobia. (b) Calculate the probability that exactly 2 of them suffer from arachnophobia. (c) Calculate the probability that at most 1 of them suffers from...
According to a Gallup poll, more than half of all Americans drink at least one glass of soda per day. Suppose X is a random variable that represents the number of glasses of soda that a randomly selected American drinks each day. The probability distribution for X is given: X 0 1 2 3 4 P(X=x) .4 .33 .14 .09 .04 Given a randomly selected American drinks at least two glasses of soda each day what is the probability that...
According to a recent Gallup poll, only 294 out of 1014 adults working full time strongly agree that their performance reviews are fair. A) Based on this finding, what is the best point estimate (in percentage form) for the true estimate of adults working full time that strongly agree that their performance reviews are fair? B) Find the margin of error for this poll assuming 95% confidence (using normal approximation). Carry to four decimal places. C) What is the 95%...
15.28 Asking about smoking habits. A 2012 Gallup survey of 1014 American adults asked participants about their smoking habits. Gallup has been conducting this survey yearly since 1944. The 2012 report was titled “In U.S., Smokers Light Up Less Than Ever,” reflecting the fact that only 1% of smokers in this latest survey stated that they smoke more than a pack a day. Gallup added the following comment to its report: It is possible that the decline in reports of...
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10. (15) According to Des Moines Register poll 40% of lowa farmers support an independent Palestinian state. Let X equal the number of lowa farmers out of a random sample of n = 20 who support an independent Palestinian state. Find: A. At most 10. At least 8 Exactly 9. B. C.
According to Gallup s annual poll on personal finances, while most U.K. workers reported living comfortably now, many expected a downturn in their lifestyle when they stop working. Approximately half said they have enough money to live comfortably now and expected to do so in the future. If you select a random sample of 200 U.K. workers,a) what is the probability that the sample will have between 45% and 55% who say they have enough money to live comfortably now...
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