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| Teaching Since: | May 2017 |
| Last Sign in: | 398 Weeks Ago, 3 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
6.31 The newspaper article “Folic Acid Might Reduce Risk of Down Syndrome” (USA Today, September 29, 1999) makes the following statement: “Older women are at a greater risk of giving birth to a baby with Down Syn- drome than are younger women. But younger women are more fertile, so most children with Down Syndrome are born to mothers under 30.” Let D = event that a randomly selected baby is born with Down Syndrome and Y = event that a randomly selected baby is born to a young mother (under age 30). For each of the following probability state-
ments, indicate whether the statement is consistent with the quote from the article, and if not, explain why not.
C
a thumbs up rating from Critic 1? (Hint: Construct a table with two rows for the first critic [for “up” and “not up”] and two columns for the second critic; then enter the rele- vant probabilities.)
a. P1D 0 Y 2 = .001, P1D 0 Y
b. P1D 0 Y 2 = .001, P1D 0 YC c. P1D 0 Y 2 = .004, P1D 0 YC d. P1D 0 Y 2 = .001, P1D 0 YC
2 = .004, P1Y 2 = .7
2 = .001, P1Y 2 = .7
2 = .004, P1Y 2 = .7
2 = .004, P1Y 2 = .4
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