Please show me how you got the answers. Thanks! 2. Which of the following statem
ID: 3059992 • Letter: P
Question
Please show me how you got the answers. Thanks! 2. Which of the following statements about logistic regression is/are TRUE? A) B) C) The variable we are trying to model is categorical and has only two possible values (i.e., success or failure). The explanatory variables can be either categorical or quantitative. Logistic regression makes use of the odds of the binomial outcome success, 1 Ps ( )=A+Ax D) The statistical model is given by log given by logP E) All of the above are true. 3. Babies who are born prematurely are susceptible to the development of a lung condition known as bronchopulmonary dysplasia (BPD).A sample of babies who weighed les than 1750 grams at birth, and who required intubation during the first few hours of life, was followed to determine the probability that the child develops BPD later in life. To model the probability that a child develops BPD as a function of the baby's birth weight x, a logistic regression was fitted. The fitted equation was found to be kng- log|-P-| = 4.0343 _ 0.0042. From this equation, what would be the estimated probability that a child who weighed 1100 grams at birth develops BPD? A) 0.009 B) 0.557 C) 0.499 D) 0.358 E) Not within ± 0.01 ofany of the above
Explanation / Answer
Result:
2)
All the above are true
3).
When x=1100,
log(p/(1-p) ) = 4.0343-0.0042*1100 = -0.5857
p/(1-p) = exp(-0.5857)
p/(1-p) = 0.5567
p = 0.5567/(1+0.5567) = 0.35762
=0.358
Answer: D. 0.358
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