Question 9 4 pts
(Note: Work required on this Q)
(and a screenshot of the data in the lists is always encouraged)
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The data below consist of the time spent studying for an exam (in hours) and their exam scores:
Time Studying
5
10
4
6
10
9
Exam score
64
86
69
86
71
87
Compute the coefficient of determination (72) value to assist you with the interpretation that
follows.
Time spent studying contributes greatly (majority) to the resulting exam score.
Time spent studying does NOT contribute greatly (majority) to the resulting exam score.
i

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?

How many lines can be drawn through points j and k? 0 1 2 3

Can someone check if i did this correct. it’s number 4 if you’re wondering.