Mathematics, 16.01.2020 05:31 purplepig12
Auniversity's housing and residence office wants to know how much students pay per month for rent in off-campus housing. the university does not have enough on-campus housing for students, and this information will be used in a brochure about student housing. they obtain a list of the 12,304 students who live in off-campus housing and have not yet graduated and mail a questionnaire to 200 students selected at random. only 78 questionairres are returned 8.1 (a) what is the population in this study? be careful: about what group do they want information? (b) what is the sample? be careful: from what group do they actually obtain information? can redefine the population about which infor- the important message in this problem is that the sample mation is obtained
Answers: 2
Mathematics, 21.06.2019 13:30
Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.
Answers: 1
Mathematics, 21.06.2019 15:20
Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?
Answers: 1
Mathematics, 21.06.2019 19:00
15 points! write the slope-intercept form of the equation of the line through the given point with the given slope. use y-y = m(x-x) to solve. through (2,5) slope= undefined
Answers: 2
Auniversity's housing and residence office wants to know how much students pay per month for rent in...
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