In: Statistics and Probability
Students took a math placement test and were placed in one of three levels of a math course: A, B, or C. The probability of placements are illustrated in the table below.
Verify the 2 requirements for a probability distribution are met.
What is the probability a student is not placed into course B?
What is the probability a student is placed into course C or B?
Math Course |
A |
B |
C |
Probability |
0.35 |
0.22 |
0.43 |
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