AI Tutor
Back to Chapter 3 Review

Exercise 3

Avg difficulty 2.5

A survey of 265 PCC students found that 23%, plus or minus 4% prefer to study at the library.

  1. What population is being studied?

  2. What type of data was collected?

  3. Is the reported 23% a statistic or a parameter?

  4. What is the margin of error?

  5. What is the confidence interval?

  6. Explain what the confidence interval tells you.

Lee et al., Math in Society, Statistics — Chapter 3 Review, Exercise 3

AI Tutor

Adapted from Math in Society © 2018–2024 Portland Community College Math Instructors. Licensed under CC BY-SA 4.0. Source: Math in Society. Imported at revision 68ee43c.