Reference no: EM13337865
Question (a) During past years, thedistribution of grades A, B, C, D and F in Commerce classes hasbeen 0.07, 0.30, 0.48, 0.10 and 0.05, respectively.
1. Find the probability that astudent receives a grade of C or better?
2. Are the events “passingwith a C or better” and “passing with an A”mutually exclusive?
(b) A company is considering five differentinvestment alternatives. Each investment results in a 25% profit ora 25% loss. The firm makes three investments. The probability ofsuccess for each investment is 0.50 and their outcomes areindependent.
1. Find the probability that allthree will be successful?
2. What is the probability thatnon will be successful?
3. What will be the probabilitythat at least two investments are successful?
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Will reduce its inventory costs-null hypothesis
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Find probability that astudent receives a grade of c
: During past years, thedistribution of grades A, B, C, D and F in Commerce classes hasbeen 0.07, 0.30, 0.48, 0.10 and 0.05, respectively.
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