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 18:10
Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180
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Mathematics, 21.06.2019 18:30
Do some research and find a city that has experienced population growth. determine its population on january 1st of a certain year. write an exponential function to represent the city’s population, y, based on the number of years that pass, x after a period of exponential growth. describe the variables and numbers that you used in your equation.
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Mathematics, 22.06.2019 04:00
Use order of operations to solve. (24 divided 3) + 3.5 + 3 power of 3
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A consumer advocacy group tested the "on-air" lifetimes a random sample of 120 cell phone batteries....