Cats and dogs The table shows whether students in an introductory statistics class like
dogs and/or cats. 
a. What is the marginal distribution (in %) of "liking dogs"?
b. What is the conditional distribution (in %) of "liking dogs" for students who like cats?
c. What kind of display(s) would you use to examine the association between "liking dogs"
and "liking cats"? (Just name a graph.)
d. Do "liking dogs" and "liking cats" appear to be independent? Give statistical evidence to
support your conclusion.
Definitions:
Reproductive Success
A measure of the number of offspring an individual produces and supports to reproductive age, which contributes to the genetic pool of the next generation.
Epigenetic Marks
Chemical modifications to DNA and histones that affect gene expression without altering the genetic sequence itself.
Gene Replication
The biological process by which a cell copies its DNA prior to cell division, ensuring that each new cell receives a full set of genetic information.
Gene Replication
The process by which a cell makes an exact copy of its genes during cell division.
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