Summary: This document tests use of non-breaking spaces, and super and subscripts set in Word.
In this activity, students work with probabilities expressed as fractions, percentages, and decimals.
Students continue to focus on the distinction between probability based on a theoretical model and probability based on observed results and on measuring probability using a real-number scale from 0 to 1.
Earlier in the unit, students estimated the probability of given events. In this activity, they invent situations that match a given probability.
5 minutes for introduction
25 minutes for activity (at home or in class)
10 minutes for class discussion
Individuals or pairs, followed by whole-class discussions
Clarify that students are to invent two situations for each question, one based on theoretical probability and the other on observed results. Let's test a link to Keypress.com by clicking here.
If students have worked individually, ensure that there is time for them to compare their invented situations. Question 5 is included to give students an opportunity to consider an impossible situation.
Does it matter whether probabilities are written as fractions, decimals, or percents?
Why is the smallest probability 0?
Why is the largest probability 1?
What does a probability of 2.3 imply?