SOLUTION: Suppose a class of about 100 students took their statistics final and their grades are shown in the table below A, B, C, D, F 25, 28, 34, 10, 3 a- Choose one student at

Algebra ->  Probability-and-statistics -> SOLUTION: Suppose a class of about 100 students took their statistics final and their grades are shown in the table below A, B, C, D, F 25, 28, 34, 10, 3 a- Choose one student at       Log On


   

Question 587104: Suppose a class of about 100 students took their statistics final and their grades are shown in the table below
A, B, C, D, F
25, 28, 34, 10, 3
a- Choose one student at random. What is the probability that he or she received a B or a C?!
b- What is the probability that a student selected at random passed the final (where D is considered to be a passing grade)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Suppose a class of about 100 students took their statistics final and their grades are shown in the table below
A, B, C, D, F
25, 28, 34, 10, 3
a- Choose one student at random. What is the probability that he or she received a B or a C?!
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Ans: (28+34)/(25+28+34+10+3) = 62/100 = 0.62
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b- What is the probability that a student selected at random passed the final (where D is considered to be a passing grade)
Ans: 97/100
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Cheers,
Stan H.