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28-01-2020
Mathematics

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If it snows tomorrow, the probability is 0.9 that John will practice his trombone. If it does not snow tomorrow, there is on a 0.5 chance that John will practice. Suppose the chance of snow tomorrow is 50%. What is the probability that John will practice his trombone?

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798483804 798483804

28-01-2020

Answer:

0.7

Step-by-step explanation:

0.5X0.9+0.5X0.5=0.7

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