Grade 7 · Math

Find a simple probability practice

Represent favorable outcomes as a fraction of equally likely outcomes.

Opening your practice adventure…

Try a sample

A bag contains 2 red counters and 4 blue counters. One counter is selected without looking, with each counter equally likely. What is the probability of red in simplest form?

See the answer & why

2 favorable counters out of 6 total gives , which simplifies to 1/3.

A little hint: Probability is favorable equally likely outcomes divided by all outcomes.

A teaching tip

State what is equally likely and count the entire sample space.

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