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Students took a math placement test and were placed in one of three levels of a...

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Statistics

Students took a math placement test and were placed in one ofthree levels of a math course: A, B, or C. The probability ofplacements are illustrated in the table below.

  1. Verify the 2 requirements for a probability distribution aremet.

  2. What is the probability a student is not placed into courseB?

  3. What is the probability a student is placed into course C orB?

Math Course

A

B

C

Probability

0.35

0.22

0.43

Answer & Explanation Solved by verified expert
3.9 Ratings (450 Votes)

P(not placed into course B) = 0.35 + 0.43 = 0.78

P(placed into course C or B) = 0.43 + 0.22 = 0.65

                                          

                                             

                                  

                                                                    
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