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3 years ago

For a variable coded "1" or "2," there are 502 "1s" and 501 "2s." what is the appropriate central tendency measure?

1 answer:

8 0

So you have a variable that has 1s and 2s and there are 502 1s and 501 2s so that mean we have 1003 digits in total so the central tendency of that is
1003 / 2 = 501.5

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Find a degree 4 polynomial having zeros -8,-1,4 and 5 and the coefficient of x^4 equal 1.

Keith_Richards [23]

Answer:

x^4 -53x^2 +108x +160

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3 years ago

A health study tracked a group of person for five years. At the beginning of the study, 20% were classified as heavy smokers, 30

Aleks04 [339]

Answer: 0.421

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Heavy smoker = 20%

Light smoker = 30%

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We can assume that the probability that a non-smoker is going to die in the next 5 years be y.

Since light smokers were twice as likely as nonsmokers to die during the five-year study, the probability will be:

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= 0.2 × 4y

= 0.8y

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The probability that the participant was a heavy smoker will be:

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3 years ago

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