A LITTLE PRACTICE GOES A LONG WAY

Statistics and Spread

Describe the center and spread of a dataset, interpret standardized scores, and use independence.

Let’s give it a go!

0 of 8 answered

01 Find the mean of 2, 4, 6, 8.
02 Find the median of 1, 3, 5, 9, 12.
03 Find the range of 3, 7, 11, 15.
04 Find the mode of 2, 2, 3, 5, 5, 5.
05 If Q1 = 4 and Q3 = 13, find the interquartile range.
06 A population has values 2, 4, 6. Its mean is 4. What is the sum of squared deviations?
07 A score is 80, the mean is 70, and the standard deviation is 5. Find the z-score.
08 For independent events with probabilities 0.5 and 0.4, find the probability both occur.

About Statistics and Spread

Describe the center and spread of a dataset, interpret standardized scores, and use independence. This activity is intended for 11th Grade learners who are ready to practice statistics. There are 8 fixed questions, so the same activity can be used to revisit a skill and compare approaches over time.

Learning tips for parents and teachers

Read the first question together and ask the learner to explain what it is asking. Offer a drawing, familiar object, or spoken example when the idea feels abstract. Let the child enter each answer independently when ready. Avoid rushing: explaining a strategy is as valuable as reaching the correct response.

Complete every question, then select Check answers to see the score and question-by-question review. Discuss mistakes together and ask what could be tried differently. Try again starts a fresh attempt. You can also print the worksheet for a quiet activity away from a screen; the printed page keeps the questions while removing the navigation and buttons. A short conversation after practice helps connect these questions with everyday learning.

A LITTLE HELP

Questions? We’ve got answers.

What is the goal of Statistics and Spread?

Describe the center and spread of a dataset, interpret standardized scores, and use independence.

Who is Statistics and Spread suitable for?

This activity supports 11th Grade practice. Choose it when the learner is comfortable with the prerequisites.

How are answers checked in Statistics and Spread?

All questions require an answer. Check answers opens a score and a review showing the expected answer for every question.