A matched pairs design is most likely to be used when:
A. the sample size is large.
B. the matching variable and the dependent variable are unrelated.
C. only a few participants are available for the study.
D. running large numbers of individuals in the experiment is inexpensive.

answer: a) 56% women

b)44% men

step-by-step explanation:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)

i believe it's a.

i'm not sure on this one, most likely correct.