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At a high school, being a senior and being a sophomore are mutually exclusive events. The probability that a randomly selected student is a sophomore is 0.23. The probability that a randomly selected student
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At a high school, being a senior and being a sophomore are mutually exclusive events. The probability that a randomly selected student is a sophomore is 0.23. The probability that a randomly selected student is a senior is 0.21. What is the probability that a randomly selected student is a sophomore or a senior?

User Ahasbini
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1 Answer

5 votes

Answer:

0.44

Explanation:

The prob. that a senior or sophomore is selected is 0.23 + 0.21 = 0.44

User Terminador
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