Mathematics, 19.11.2019 23:31 smhrosepetals
The amount of time that a drive-through bank teller spend on acustomer is a random variable with μ= 3.2 minutes andσ=1.6 minutes. if a random sample of 64 customers is observed, find the probability that their mean ime at the teller's counteris(a) at most 2.7 minutes.(b) more than 3.5 minutes.(c) at least 3.2 minutes but less than 3.4 minutes.
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
There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y
Answers: 1
Mathematics, 21.06.2019 18:20
Match each inequality to the number line that represents its solution
Answers: 3
Mathematics, 21.06.2019 21:30
Mario is constructing a frame for 10 in. by 8 in. photo. he wants the frame to be the same with all the way around in the same area of the frame and photo to be 120 square inches what is the dimension of the frame?
Answers: 1
The amount of time that a drive-through bank teller spend on acustomer is a random variable with μ=...
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