i need help with this statistics problem.. please?

Question

A video game publisher wants to find the base audience for their video games. with every video game sold, they ask the buyers to register on the publisher's website. the buyers are asked to specify their sex (m or f), age, race (caucasian, black, hispanic, asian, other) , and favorite type of video game (action, strategy, role-playing, shooter). The publisher expects 30% of the buyers to register. they use data from all registered buys to make their assessments.

a). state the sample
b). state the population
c). state the experimental unit
d). state the variable or variables
e). for each variable state if it is quantitative or qualitative
f). state variable for which we can draw a histogram (only state which variables).
g). state the variable(s) for which we can draw a box plot.
h). assuming no categories have a class relative frequency of 0%, how many slices whould a pie chart have if it were drawn to discribe the sex of the listners..

Answer 1

a. 30% of registered buyers
b. 100% of registered buyers
c. favorite video game
d. sex, age, race
e. sex: qualitative, age: quantitative, race: qualitative
f. age
g. sex, age, race
h. two

Answer 2

a. 30% of buyers
b. all buyers
c. each buyer
d. sex, age, race, favorite game
e. qual, quant, qual, qual
f. Histograms can be drawn for all, but are most telling for age, then favorite game and race. A histogram of gender is pretty boring.
g. A box plot can only be done for age.
h. "listners"?