probability
Question Description
There are 20 students in class and each student was asked to give a chart for 10 different counties in the state of Texas. What is the probability that at least 25% of the counties had a chart turned in?
There are 20 students in class and each student was asked to give a chart for 10 different counties in the state of Texas. What is the probability that at least 50% of the counties had a chart turned in?
There are 20 students in class and each student was asked to give a chart for 10 different counties in the state of Texas. What is the probability that at least 75% of the counties had a chart turned in?
There are 20 students in class and each student was asked to give a chart for 10 different counties in the state of Texas. What is the probability that at least 100% of the counties had a chart turned in?
There are 20 students in class and each student was asked to give a chart for 10 different counties in the state of Texas. What is the probability that two students had a least one county in common?
There are 20 students in class and each student was asked to give a chart for 10 different counties in the state of Texas. What is the probability that two students had a least three counties in common?
There are 20 students in class and each student was asked to give a chart for 10 different counties in the state of Texas. What is the probability that a given two students had all of the same counties?
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