Hi! I need help with standard distribution. Here’s the problem:

You want to know the percentage of utility companies that earned less than $36 million if the mean revenue was $60 million and the data has a standard deviation of 11 million. Find the percentage. Assume that the distribution is normal round your answer to the nearest hundredth.

Thanks! (By the way, I’m working with a TI-83 plus calculator)

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297