Mathematics, 17.08.2020 01:01 ava9308
A consumer advocacy group tested the "on-air" lifetimes a random sample of 120 cell phone batteries. The mean lifetime was 3.2 hours with a standard deviation of 0.1 hours. The lifetimes are approximately bell-shaped. Estimate the number of batteries with lifetimes between 3.0 hours and 3.4 hours.
Answers: 3
Mathematics, 21.06.2019 18:00
You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?
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Mathematics, 21.06.2019 18:20
What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68
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Mathematics, 21.06.2019 21:30
Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?
Answers: 3
A consumer advocacy group tested the "on-air" lifetimes a random sample of 120 cell phone batteries....
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