Exercises: Probability Using Venn Diagrams

Work through each section in order. Express probabilities as fractions in simplest form, and check that your probabilities add to 1 where applicable.

Grade 6·21 problems·~28 min·Uganda NCDC Primary 6 Mathematics·lesson·sets-04

Work through problems with immediate feedback

Recall / Warm-Up

A bag has 10 balls: 6 red and 4 blue. What is the probability of picking a red ball?

6:10, written as a ratio comparing red balls to the total.

6/10, simplified to 3/5, since probability is written as a fraction of favorable outcomes over total outcomes.

6, the number of red balls, without needing to compare it to the total.