Measures Of Central Tendency & Spread

Statistics

AP Statistics

IB Math

Reviewed by Editorial Team

The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.

Learn about Our Editorial Process

| By Dana Deuitch

Dana Deuitch

Community Contributor

Quizzes Created: 3 | Total Attempts: 2,435

| Attempts: 104 | Questions: 9 | Updated: Mar 21, 2025

Question 1 / 9

0 %

0/100

Score 0/100

Submit

About This Quiz

Measures Of Central Tendency & Spread - Quiz

One Variable Statistics - Measures of Central Tendency and Measures of Spread

2) What first name or nickname would you like us to use?

You may optionally provide this to label your report, leaderboard, or certificate.

Submit

4) Use the following set of data for all the questions: {4,5,5,5,5,6,7,7,7,8,9,11} Find the median

Find the middle value. (in this case halfway between the two middle values)

Explanation

Find the middle value. (in this case halfway between the two middle values)

Submit

6) Use the following set of data for all the questions: {4,5,5,5,5,6,7,7,7,8,9,11} Find the mean (correct to 2 decimal places)

Add them all up and divide by the number of items.

Explanation

Add them all up and divide by the number of items.

Submit

8) Use the following set of data for all the questions: {4,5,5,5,5,6,7,7,7,8,9,11} Find Standard Deviation (correct to 2 decimal places)

First find the sum of all the x squared values (565), subtract the count (12) times the mean (6.5833333) squared, then divide by the count (12), and finally take the square root.

Explanation

First find the sum of all the x squared values (565), subtract the count (12) times the mean (6.5833333) squared, then divide by the count (12), and finally take the square root.

Submit

Thank you for your feedback!

All (9)
Unanswered ()
Answered ()

Use the following set of data for all the questions:...