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Mathematics, 21.06.2019 18:40, calebhoover03
2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:30, Lindsay882
How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way
Answers: 1
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Mathematics, 22.06.2019 03:30, KayleighMorganhopkin
Sections of prefabricated wood are each 5 1/3 feet long. how long are 7 1/2 sections placed end to end?
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Which is equivalent to ? 3 6 36 72...
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