Mathematics, 12.03.2021 18:40 SuperWoman9172
TIMED PLEASE HELP
Alex's times for running a mile are Normally distributed with a mean time of 5.28 minutes and a standard deviation
of 0.38 seconds. Chris's times for running a mile are Normally distributed with a mean time of 5.45 seconds and a
standard deviation of 0.2 seconds. Ten of Alex's times and 15 of Chris's times are randomly selected. Let 5-7
represent the difference in the mean times for Alex and Chris. Which of the following represents the standard
deviation of the sampling distribution for 3-7?
0 0.09
0 0.13
O 0.17
O 0.18
Answers: 1
Mathematics, 21.06.2019 16:30, Hfruit
You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:
Answers: 1
Mathematics, 21.06.2019 19:30, tyeni2crazylolp7a3hk
If chord ab is congruent to chord cd, then what must be true about ef and eg?
Answers: 1
TIMED PLEASE HELP
Alex's times for running a mile are Normally distributed with a mean time of 5.28...
Mathematics, 28.10.2020 14:00
History, 28.10.2020 14:00
Mathematics, 28.10.2020 14:10
Mathematics, 28.10.2020 14:10
English, 28.10.2020 14:10
Geography, 28.10.2020 14:10