Mathematics, 21.09.2021 14:00 lesliealvarado1022
The number of cars sold annually by used car salespeople is normally distributed with a variance of 2225. A random sample of 400 salespeople was taken and the mean number of cars sold annually was found to be 75. Find the 95% confidence interval estimate of the population mean.
Answers: 3
Mathematics, 21.06.2019 15:00
Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?
Answers: 1
Mathematics, 21.06.2019 17:00
The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?
Answers: 1
Mathematics, 21.06.2019 18:30
Which representation has a constant of variation of -2.5
Answers: 1
Mathematics, 22.06.2019 02:00
Your company will replace the asphalt roofs on all the buildings at the factory complex shown below. the buildings have flat roofs. you charge according to the total roof area. what is this area, in square yards?
Answers: 3
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