Question

Dexter is 45 years old and 181 cm tall. For the last 8 years, his doctor...

Dexter is 45 years old and 181 cm tall. For the last 8 years, his doctor has charted Dexter’s mass and related it to his BMI (Body Mass Index). A BMI between 20 and 26 is considered healthy.

The data is shown in the following table.

Mass(kg) 62 72 66 79 85 82 92 88

BMI 19 22 20 24 26 25 32 27

a) Create a complete scatter plot for the data.

b) Describe any trends in the data. Explain.

c) Draw a line of best fit on your graph.

A student is practicing archery with a target made of three concentric zones: A circular bull's eye in the middle, an inner ring, and an outer ring. He has a 0.14 probability of hitting the bull's eye, a 0.37 probability of hitting the inner ring and a 0.40 probability of hitting the outer ring. On any given shot, what is the probability that the student:

a) Hits the inner ring or the bull's eye.

b) Hits the target but does not get a bull's eye.

c) Misses the target entirely.

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Answer #1

a) Scatter plot

30 27 M 24 21 15 60 65 7075 80 85 90 95 Mass

b) positive linear correlation between Mass and BMI

c)

30 27 м 24 21 y 0.3752x-4.9871 R2 0.9213 15 60 65 7075 80 85 90 95 Mass

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  • A student is practicing archery with a target made of three concentric zones: A circular bull's...

    A student is practicing archery with a target made of three concentric zones: A circular bull's eye in the middle, an inner ring, and an outer ring. He has a 0.14 probability of hitting the bull's eye, a 0.37 probability of hitting the inner ring and a 0.40 probability of hitting the outer ring. On any given shot, what is the probability that the student: a) Hits the inner ring or the bull's eye. b) Hits the target but does...

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