What happens when the sample size of a newspaper poll is decreased?
a. the bias increa...
Mathematics, 13.01.2020 03:31 gaby6951
What happens when the sample size of a newspaper poll is decreased?
a. the bias increases
b. the variability decreases
c. the variability increases
d. the bias decreases
e. none of the above
Answers: 1
Mathematics, 21.06.2019 15:20, aliceotter2007
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
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Answers: 2
Mathematics, 21.06.2019 23:00, cakecake15
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Answers: 1
Mathematics, 21.06.2019 23:00, bravooyessenia
Mr. rose asked his students to draw a quadrilateral with 4 unequal sides. draw an example of this kind of quadrilateral.
Answers: 2
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