Mathematics, 28.02.2020 19:07 aromesburg
Statistician William Hammack examined the relationship between thenumber of public schools in each county of Florida and the crimerate for the county. The data showed a very strong linearrelationship with r = 0.970. From this we conclude
a. Public schools causecrime.
b. There is probably alurking variable at work.
c. This is totallymeaningless.
Answers: 3
Mathematics, 21.06.2019 14:30
F(x)= 1/x-4, g(x)=4x+1/x a. use composition to prove whether or not the functions are inverses of each other. b. express the domain of the compositions using interval notation.
Answers: 2
Mathematics, 21.06.2019 16:00
Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?
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
Statistician William Hammack examined the relationship between thenumber of public schools in each c...
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