Video: Determining the Probability of an Event in a Dice Experiment

What it is the probability of rolling a number greater than or equal to 2 on a regular dice?

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Video Transcript

What is the probability of rolling a number greater than or equal to two on a regular die?

A regular die has six sides. The six sides are labelled one, two, three, four, five, and six. And we want to know the probability of rolling a number greater than or equal to two.

So in order to solve for this probability, we need to take the number of sides that are two or greater and divide by the total number of sides. Let’s begin by listing the sides that are two or greater: two, three, four, five, and six.

And the total number of sides, we’ll need to include the sides one through six. So how many sides were two or greater? One, two, three, four, five.

And then how many total sides were there? As we already know, six! So the probability of rolling a number greater than or equal to two on a regular die would be five-sixths.

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