1a. If you make random guesses on four multiple choice test questions (each with five possible answers), what is the probability of getting at least one question incorrect?
1a. If you make random guesses on four multiple choice test questions (each with five possible answers), what is the probability of getting at least one question incorrect?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 6ECP: In Pennsylvania’s Cash 5 game, a player chooses five different numbers from 1 to 43. If these five...
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1. Probabilty Questions
1a. If you make random guesses on four multiple choice test questions (each with five possible answers), what is the probability of getting at least one question incorrect?
1b. Seven different crime victims listened to voice recordings of four different suspects. If the voice identifications were made by random guess, find the probability that all the victims would select the same voice recording.
1c. Find the probability that 3 randomly selected people all have different birthdays. Ignore leap years.
1d. Find the probability that among 5 randomly selected people, at least one of them were born in March. Ignore leap years.
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