Mathematics, 31.07.2019 18:40 julietmusyoki5
Aresearcher is trying to find out if there is a correlation between the u. s. economy and the number of hours spent on social media. the researcher determines that the correlation coefficient is r = 1.26. what does this value mean? a) the researcher made an error because −1 ≤ r ≤ 1. b) when the u. s. economy is good, people spend more time on social media. c) when the u. s. economy is poor, people spend more time on social media. d) when the u. s. economy is good, people spend less time on social media.
Answers: 1
Mathematics, 21.06.2019 22:00
The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score
Answers: 1
Mathematics, 21.06.2019 22:30
Shannon drove for 540 minutes. if she traveled 65 miles per hour,how many total miles did she travel?
Answers: 2
Mathematics, 21.06.2019 23:00
Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?
Answers: 1
Aresearcher is trying to find out if there is a correlation between the u. s. economy and the number...
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