The average age of teaching staff in a certain institution is 51.0 years old. Assume that the distribution of ages is normal and has a standard deviation of 8.0 years. If 9 teaching staff are chosen at random for a committee, find the probability that the average age of those teaching staff is less than 52.9 years.

Which of the following would indicate an improvement in a company's financial position, holding other things constant? a. the inventory and total assets turnover ratios both decline. b. the debt ratio increases. c. the profit margin declines. d. the times-interest-earned ratio declines. e. the current and quick ratios both increase.

By which distribution system is more than 90 percent of u. s. coal shipped? a. pipelinesb. trucksc. waterwaysd. railroadse. none of the above

In 2018, laureen is currently single. she paid $2,800 of qualified tuition and related expenses for each of her twin daughters sheri and meri to attend state university as freshmen ($2,800 each for a total of $5,600). sheri and meri qualify as laureen’s dependents. laureen also paid $1,900 for her son ryan’s (also laureen’s dependent) tuition and related expenses to attend his junior year at state university. finally, laureen paid $1,200 for herself to attend seminars at a community college to her improve her job skills. what is the maximum amount of education credits laureen can claim for these expenditures in each of the following alternative scenarios? a. laureen's agi is $45,000.b. laureen’s agi is $95,000.c. laureen’s agi is $45,000 and laureen paid $12,000 (not $1,900) for ryan to attend graduate school (i. e, his fifth year, not his junior year).