A statistics professor has noted from past experience that a student who follows a program of studying two hours for each hour in class has a probability of 0.9 of getting a grade of Cor better, while a student who does not follow a regular study progr am has a probability of 0.2 of getting aCor better, It is known that 70% of the students follow the study program. Find the probability that a student who has earned a Cor better grade, followed the program. a. 0.9300 b. 0.9130 c. 0.9310 d. 0.9000

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 6E
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QUESTION 34
A statistics professor has noted from past experience that a student who follows a program of studying two hours for each hour in class has a
probability of 0.9 of getting a grade of C or better, while a student who does not follow a regular study program has a probability of 0.2 of getting
a Cor better. It is known that 70o% of the students follow the study program. Find the probability that a student who has earned a Cor better
grade, followed the program.
a. 0.9300
b. 0.9130
C. 0.9310
d. 0.9000
b.
d.
Transcribed Image Text:QUESTION 34 A statistics professor has noted from past experience that a student who follows a program of studying two hours for each hour in class has a probability of 0.9 of getting a grade of C or better, while a student who does not follow a regular study program has a probability of 0.2 of getting a Cor better. It is known that 70o% of the students follow the study program. Find the probability that a student who has earned a Cor better grade, followed the program. a. 0.9300 b. 0.9130 C. 0.9310 d. 0.9000 b. d.
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