At kirk's audio emporium, 15% of the customers buy an extended warranty for their items. for a randomly-chosen group of 60 customers, let the random variable xequalsthe number of customers who buy an extended warranty. a) find p(xequals5). what does this number represent? b) find p(xless than or equals6). what does this number represent? c) find p(3less than or equalsxless than or equals9). what does this number represent? d) find mu and p(xequalsmu). what do these numbers represent?

Questions 9-10. use the table of educational expenditures to answer the questions. k-12 education expenditures population indiana $9.97 billion 6.6 million illinois $28.54 billion 12.9 million kentucky $6.58 billion 4.4 million michigan $16.85 billion 9.9 million ohio $20.23 billion 11.6million 9. if the amount of k-12 education expenses in indiana were proportional to those in ohio, what would have been the expected value of k-12 expenditures in indiana? (give the answer in billions rounded to the nearest hundredth) 10. use the value of k-12 education expenditures in michigan as a proportion of the population in michigan to estimate what the value of k-12 education expenses would be in illinois. a) find the expected value of k-12 expenditures in illinois if illinois were proportional to michigan. (give the answer in billions rounded to the nearest hundredth) b) how does this compare to the actual value for k-12 expenditures in illinois? (lower, higher, same? )