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marysya [2.9K]
2 years ago
9

13. What does a correlation coefficient of r = - 0.97 generally imply about the graph of a data set?

Mathematics
1 answer:
d1i1m1o1n [39]2 years ago
6 0
I don't know but I think it is B) The slope is negative, and a linear model is a good fit for the data.
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Byron is conducting an experiment to determine whether a new medication is effective in reducing coughing. He finds 1,200 volunt
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The medication is effective, but may take some time to work its way to the immune system

Step-by-step explanation:

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What is 34% written as a ratio?
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Read 2 more answers
Jacob consumes an energy drink that contains caffeine. After consuming the energy drink, the amount of caffeine in Jacob's body
sasho [114]

Answer: 0.87400mg of caffeine.

Step-by-step explanation:

You have

N(t)=N0(e^−rt)(1)

as a general Exponential decay equation where N0 is the amount at t=0, N(t) is the amount remaining at time t and r is the exponential decay constant. You're specifically given that after 10 hours, the decay factor is 0.2601, i.e.,

N(10)/N(0)=N0(e^−10r)/N0(e^0)= e^−10r=0.2601 . .(2)

Taking the last 2 parts of (2) to the power of 0.1t gives

e^−rt=0.2601^.1t . .(3)

This means that

N(t)=N0(e^−rt)=N0(0.2601^.1t). .(4)

Also,

N(2.56)N(1.56)=N0(0.2601.1(2.56))N0(0.2601.1(1.56))=0.2601.1(2.56−1.56)=0.2601^.1

= 0.87400mg of caffeine.

6 0
3 years ago
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