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Question Video: Determining Likely, Equally Likely, or Less Likely Events Mathematics

Is it more likely, equally likely, or less likely that the spinner lands on red rather than green?

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Video Transcript

Is it more likely, equally likely, or less likely that this spinner lands on red rather than green?

We can see on the diagram that our spinner has been split into 10 equal sections. Of these, four are blue. Two of the sections are yellow. Two of the sections are green. Finally, two of the sections are red. In this question, we are interested in the sections that are red and green.

We have already seen that two out of the 10 sections are green and two out of the 10 sections are red. As the same number of sections are red and green, we can say that it is equally likely that the spinner lands on red and green.

Whilst we’re not asked to in this question, we could write these probabilities as fractions. There is a two-out-of-10 or two-tenths chance of landing on green or red. This could be simplified to one-fifth or one out of five. There is a one-in-five chance that the spinner lands on red and a one-in-five chance that it lands on green.

This is also true of yellow as there are two yellow sections on the spinner. The probability of landing on blue, however, would be four-tenths, which simplifies to two-fifths, as four out of the 10 sections are blue.

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