If you know there is at least one girl, what is the probability that the family has
exactly one boy? (5%)
What is the probability that there are more boys than girls? (5%)
Given that at least one child is a boy, what is the probability that there are more
boys than girls? (5%)
Based on whether the answers to (三) and (四) are the same, what can you say
about the relationship between the events mentioned in (三) and (四)? (8%)
Write out the equation to show the finding of this study for the third grade kids.
Use direct verbal expressions with unit used like “salary in dollars” or “number of
miles run” rather than “x”, “y”, or “z” in your equation. (11%)
With the research finding for the third grade kids and the confirming results for
fifth-and sixth-grade kids, why the researcher still says “The implication is not that
moms leave the workforce” “If that were to happen, childhood obesity would not
go away at all”? Aren’t the proofs strong enough to advice mothers to quit their
jobs? (5%)
What kinds of statistically analyses are used in the (1) 2003 paper? (2) 2007 paper?
(6%)
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