A multiple choice question on an exam has four possible responses—(a), (b), (c), and (d). When 250 students take the exam, 100 give response (a), 25 give response (b), 75 give response (c), and 50 give response (d).

a. Write out the frequency distribution, relative frequency distribution, and percent frequency distribution for these responses.

b. Construct a bar chart for these data using frequencies.