Mathematics, 18.03.2021 01:10, deandrathomas34
The average time to run the 5K fun run is 21 minutes and the standard deviation is 2.6 minutes. 40 runners are randomly selected to run the 5K fun run. Round all answers to 4 decimal places where possible and assume a normal distribution. What is the distribution of X~ N(21, 2.6) What is the distribution of ¯x~ N(21, 0.4111) What is the distribution of ∑x~ N(840, 16.4438) If one randomly selected runner is timed, find the probability that this runner's time will be between 20.8833 and 21.4833 minutes 0.0913 e. For the 40 runners, find the probability that their average time is between 20.8833 and 21.4833 minutes 0.4913 f. Find the probability that the randomly selected 40 person team will have a total time less than 832. For part e) and f), is the assumption of normal necessary No The top 10% of all 40 person team relay races will compete in the championship round. These are the 10% lowest times. What is the longest total time that a relay team can have and still make it to the championship round? minutes
Answers: 2
Mathematics, 21.06.2019 20:00, proutyhaylee
Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.
Answers: 1
Mathematics, 22.06.2019 00:10, ruddymorales1123
Me i need ! find the asymptote and determine the end behavior of the function from the graph. the asymptote of the function is= blank 1 . for very high x-values, y =blank 2 options for blank 1 x=2 x=-2 x=3 x=-3 blank 2 options moves towards negative infinity moves toward the horizontal asymptote moves toward the vertical asymptote moves toward positive infinity
Answers: 1
The average time to run the 5K fun run is 21 minutes and the standard deviation is 2.6 minutes. 40 r...
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