What is the probability of scoring an even number by rolling a die?
Solution
There are six possible outcomes from rolling a die, and three of them will give an even number (2, 4 and 6).
So the probability is 3 out of 6, which can be simplified to 1 out of 2.
This can be expressed as 1 in 2, , 0.5 or 50%.
Allow approximately 20 minutes.
Calculate each of the following. Express your answers as a proportion, a fraction, a decimal and a percentage (to 2 s.f. where appropriate).
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