The times for the mile run of a large group of male college students are approximately normal with mean 7.09 minutes and standard deviation 0.77 minutes. use the 68-95-99.7 rule to answer the following questions. (start by making a sketch of the density curve you can use to mark areas on.) (a) what range of times covers the middle 68% of this distribution? (b) what percent of these men run a mile in more than 9.4 minutes? (a) from 6.32 minutes to 7.86 minutes (b) 13 %

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?

Select all of the following expressions that are equal to 2.5.