2019, Question 6 · 4 points · about 25 minutes
Apartment rents and a bootstrap interval
Describe the population a website sample of rents represents, explain why the mean is a poor summary for skewed rents, describe how a sampling distribution of medians could be built, then read percentiles from a bootstrap table to make and interpret an interval for the median.
This exam had six free-response questions, each scored from 0 to 4. Its Question 6, the Investigative Task, is no longer part of the exam. The current exam has 4 free-response questions in 90 minutes. The skills these questions practice still count.
Not in the current course. Parts (d) to (f) build an interval estimate from a bootstrap distribution of sample medians, a method the current course does not include.
1 Read the question
The question is College Board's, from the 2019 exam. It starts on page 12 of the PDF. College Board no longer posts this exam, so it opens from the copy of College Board's PDF that the Internet Archive saved on March 15, 2026.
Open Question 6 (PDF, page 12)
2 Write your answer
Answer each part the way you would on the exam, in full sentences, with your work shown. Your writing saves as you type.
3 Score it
Score your answer against College Board's scoring guidelines, one point at a time. Give yourself a point only when your answer says what the guideline asks for.
Scoring guidelines (PDF, page 28) What the exam readers saw (Chief Reader report)
Question, scoring guidelines and Chief Reader report: College Board, from the Internet Archive. The title and summary are ours.