Mathematics, 16.12.2021 05:40 jjsavage06
SOMEONE PLEASE HURRY AND HELP To qualify for a certain marathon in Raleigh, a runner must be faster than 84% of their peers. If the average marathon pace was 3.5 hours with a standard deviation of 10 minutes, what is the qualifying time for the marathon? Assume the data is normally distributed.
Answers: 2
Mathematics, 21.06.2019 19:40
It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?
Answers: 1
Mathematics, 22.06.2019 03:30
The bottom of a vase is a square.each side measury y+11 units.the square has a perimeter of 55 units what is the value of y?
Answers: 2
SOMEONE PLEASE HURRY AND HELP
To qualify for a certain marathon in Raleigh, a runner must be faste...
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