The only grades possible in a history course are A, B, C, D or F. The probabilit

Question

The only grades possible in a history course are A, B, C, D or F. The probability that a randomly selected student will get an A in the course is 0.29, the probability that a student will get a B in the course is 0.24, the probability that a student will get a C in the course is 0.29, the probability that a student will get a D is 0.16, and the probability that a student will get an F is 0.02.

a. What is the probability that a student will get an A OR a B?

b. What is the probability that a student will get an A OR a B OR a C?

c. What is the probability that a student will get a D or an F?

Write your answer in the form of a decimal. Do not round your answers.

Explanation / Answer

The only grades possible in a history course are A, B, C, D or F. The probability that a randomly selected student will get an A in the course is 0.29, the probability that a student will get a B in the course is 0.24, the probability that a student will get a C in the course is 0.29, the probability that a student will get a D is 0.16, and the probability that a student will get an F is 0.02.

a. What is the probability that a student will get an A OR a B?

b. What is the probability that a student will get an A OR a B OR a C?

c. What is the probability that a student will get a D or an F?

Write your answer in the form of a decimal. Do not round your answers.

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