Collins Campbell
02/10/2023 · Junior High School
A student prepares for an exam by studying a lut of 5 problems che can volve six of them. For the exam the ingtructor colects fire guestion's at a random from the list of 15 . a) What is the probobility that the student can volve exactly 3 prablems onthe the exam. b) Find e nean and standard deriabon of the number of stucto problems that student can volve on the exam
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a) The probability that the student can solve exactly 3 problems on the exam is approximately 0.2397 or 23.97%.
b) The mean number of problems the student can solve is 2, and the standard deviation is approximately 0.9258.
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