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Grade 7 math · X.1 · Probability

Likelihood of events from decimal probabilities

Probabilities run from 0 (impossible) to 1 (certain). Write one of the five words.

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  1. An event has a probability of 0.33. Is it impossible, unlikely, equally likely, likely or certain? Write one of those.

    Answer: unlikely

  2. An event has a probability of 0.5. Is it impossible, unlikely, equally likely, likely or certain? Write one of those.

    Answer: equally likely

  3. An event has a probability of 0.75. Is it impossible, unlikely, equally likely, likely or certain? Write one of those.

    Answer: likely

Tip: Probabilities run from 0 (impossible) to 1 (certain). Write one of the five words.

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