IXL | Use collected data to find probabilities

At the school carnival, Nicole is in charge of a spinner game where students can win prizes. The spinner is divided into 4 unequal sections labeled

book,

sticker,

eraser,

and

keychain.

Nicole keeps track of what prizes the spinner lands on for the first 8 students who play. Here are her results:

sticker, book, eraser, keychain, sticker, eraser, sticker, keychain

Based on the data, what is the probability of the spinner landing on

keychain?

Write your answer as a fraction or whole number.

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Learn with an example

question

Clare streams a classical music station while she's doing chores on the weekends. Here are the types of musical pieces she has listened to so far this weekend:

overture, symphony, sonata, concerto, symphony, sonata, overture, symphony, opera, sonata, concerto

Based on the data, what is the probability that the next piece Clare listens to will be a concerto?

Write your answer as a fraction or whole number.

solution

Use the data to determine the probability that the next piece Clare listens to will be a concerto.

Clare has listened to 11 pieces of music so far this weekend.
2 of these were concertos.

Based on the data, the probability that the next piece Clare listens to will be a concerto is

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Lesson: Probability

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