Expected number from a theoretical probability
Multiply the probability by the number of trials.
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The probability of a spinner landing on blue is 9/10. If it is spun 120 times, how many times would you expect it to land on blue? (A number; it may be a decimal.)
Answer: 108
The probability of a spinner landing on blue is 5/6. If it is spun 24 times, how many times would you expect it to land on blue? (A number; it may be a decimal.)
Answer: 20
The probability of a spinner landing on blue is 1/2. If it is spun 4 times, how many times would you expect it to land on blue? (A number; it may be a decimal.)
Answer: 2
Tip: Multiply the probability by the number of trials.
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