Mathematics, 23.04.2020 22:57 dondre54
Per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.27 seconds . The distribution of her race times is normally distributed. We are interested in one of her randomly selected laps. (Source: log book of Terri Vogel) Let X be the number of seconds for a randomly selected lap. Round all answers to 4 decimal places where possible.
What is the distribution of X?
Answers: 3
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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?
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George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2
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Find the amplitude of a sinusoidal function that models this temperature variation
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Per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.27 seconds . The distribution of h...
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