Replacement times for tv sets are normally distributed with a mean of 8.2 years and a standard deviation of 1.1 years (consumer reports). find the probability that a randomly selected tv will have a replacement time less than 5.0 years. if you want to provide a warranty so that only 1% of the tv sets will be replaced before the warranty expires, what is the time length of the warranty?

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Apoll is being conducted at a mall nothingto obtain a sample of the population of an entire country. what is the frame for this type of​ sampling? who would be excluded from the survey and how might this affect the results of the​ survey? what is the frame for this type of​ sampling? a. the frame is people who need new clothes. b. the frame is people who shop at the mall. c. the frame is people who like to shop. d. the frame is the entire population of the country. who would be excluded from the survey and how might this affect the results of the​ survey? a. any person that does not need new clothes is excluded. this could result in sampling bias due to undercoverage. b. any person who does not shop at the mall is excluded. this could result in sampling bias due to undercoverage. c. any person who does not shop at the mall is excluded. this could result in nonresponse bias due to people not participating in the poll. d. there is nobody that is being excluded from the survey.

Find the measure of anglec in the following triangle