Choose the Model That Fits the Data

Use them after simple probability. The prediction sheets work well with a short class discussion of why real results differ.

Compare sample shares for a mystery spinner and a bent coin against two models and circle the better fit. The directions on the page read: For each sample, divide each count by the total to find the share. Compare the shares with both models. Circle the better fit and write your reason on the lines. An answer key is included.

Yes, both. We made it for 7th grade probability, and it works the same at home or at school. At home, a student can work through it alone and then go over it with you, which shows quickly what is solid and what needs another look. In class it works as independent practice, homework or a warm-up, and you can print one copy or a full set.

It is the share of times an event happened in actual trials. Divide the number of times it occurred by the total number of trials.

Write a proportion with the sample results and the larger number of trials, then solve it. The Predict Outcomes From Experimental Results worksheet does this.

In a uniform model, every outcome has the same probability. The Uniform and Non-Uniform Probability Models worksheet has students check by adding to 1.

Yes. All 6 worksheets in this group have answer keys.