今天小弟在算數學,碰到了一直轉不過來的問題:
Q:In 1983, Dr. J. D. Robinson published the fol-lowing estimate of the ideal body weight of a woman:

49 kg + 1.7 kg for each inch over 5 ft

A) Find a linear model for Robinson's estimate of the ideal weight of a woman using w for ideal body weight (in kilograms) and h for height over 5 ft (in inches).
B) Interpret the slope of the model.
C) If a woman is 5'4" tall, what does the model predict her weight to be?
D) If a woman weighs 60 kg, what does the model predict her height to be?

請問各位我該怎麼算??

共 5 則回應

已經刪除的內容就像 Dcard 一樣,錯過是無法再相見的!
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(A)w=h*1.7+49
(C)4*1.7+49=55.8
(D)(60-49)/1.7=6.47 5foot 6.47inch
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b1 我還是補上題目好了
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b2 正解
w=49+(h換算成inch-(12*5)inch)*1.7
h=身高(含呎及英吋)
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題目改了
變成h for height over 5 ft (in inches)
所以應該是改成現在這樣w=h*1.7+49
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