According To An Almanac 70 Of Adult Smokers Started Smoking Before Turning 18 Years Old A Compute The Mean And Stand 1 (29.79 KiB) Viewed 46 times
According To An Almanac 70 Of Adult Smokers Started Smoking Before Turning 18 Years Old A Compute The Mean And Stand 2 (29.78 KiB) Viewed 46 times
According to an almanac, 70% of adult smokers started smoking before turning 18 years old (a) Compute the mean and standard deviation of the random variable X, the number of smokers who started before 18 in 100 trials of the probability experiment. (b) Interpret the mean (c) Would it be unusual to observe 80 smokers who started smoking before turning 18 years old in a random sample of 100 adult smokers? Why? (Round to the nearest tenth as needed.) (b) What is the correct interpretation of the mean? OA: It is expected that in a random sample of 100 adult smokers, 70 will have started smoking after turning 18 OB. It is expected that in a random sample of 100 adult smokers, 70 will have started smoking before turning 10. OC. It is expected that in 50% of random samples of 100 adult smokers, 70 will have started smoking before turning 18, (c) Would it be unusual to observe 80 smokers who started smoking before turning 18 years old in a random sample of 100 adult smokers? OA. Yes, because 80 is greater than +20 OB. No, because 80 is less than -20 OC. Yes, because 80 is between p-20 and OD. No, because 80 is between p-20 and OE No. because 80 is greater than +20. +20 20
According to an almanac, 70% of adult smokers started smoking before turning 18 years old (a) Compute the mean and standard deviation of the random variable X, the number of smokers who started before 18 in 100 trials of the probability experiment (b) Interpret the mean (c) Would it be unusual to observe 80 smokers who started smoking before turning 18 years old in a random sample of 100 adult smokers? Why? (4) P a, (Round to the nearest tenth as needed) (b) What is the correct interpretation of the mean? OA. It is expected that in a random sample of 100 adult smokers, 70 will have started smoking after turning 18. OB. It is expected that in a random sample of 100 adult smokers, 70 will have started smoking before turning 18 OC. It is expected that in 50% of random samples of 100 adult smokers, 70 will have started smoking before turning 18 (c) Would it be unusual to observe 80 smokers who started smoking before turning 18 years old in a random sample of 100 adult smokers? OA. Yes, because 80 is greater than +20 OB No, because 50 is less than -20 OC. Yes, because 80 is between u-20 and 20 OD. No, because 80 is between p-2m and μ-20 OE. No, because 80 is greater than u 20
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