) two shooters shoot the target. The probability that the first shooter hits the target in a single shot is 0.7 and the probability that the second shooter hits the target in a single shot is 0.5 the shooters shoot 20 times simultaneously to a target. What is the most probable number of times that...

In my library there are two lines for the 30 minute computers. In one line people wait to use six computers and in the other line they wait to use 10 computers. Based on the number of people already waiting, how do I know which line I should sit in to get on the fastest? That is, what is the...

A recent study showed that the modern working person experiences an average of 2.1 hours per day of distractions. A random sample of 50 workers found workers were distracted an average of 1.8 hours per day and the population standard deviation was 20 minutes. Estimate the true mean population...

There were 55 people at a high school class reunion. If 16 people had college degrees, 12 people had college degrees and were married, and 14 people were single and did not have college degrees, how many people were married and did not have college degrees?

hello.. I have an exam and a homework I couldn't solve all of it.. I know it's a lot of work.. but I couldn't solve 5 question 1)http://img696.imageshack.us/img696/7222/p46exercises24.jpg 2) If the probability that each component will operate is shown, what is the probability that a current...