# What is the probability that a randomly selected part

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What is the probability that a randomly selected part-time student at this college takes at least 2 courses? (That is, find P(X ≥ 2 )
Question 12 of 20 1.0/ 1.0 Points The random variable X = the number of vehicles owned. Find the probability that a person owns less than 2 vehicles. x 0 1 2 3 4 P(X = x ) 0.1 0.35 0.25 0.2 0.1
Question 13 of 20 1.0/ 1.0 Points Let X be the number of courses taken by a part-time student at a college. The following table shows the probability distribution of X with probability as a percentage. Number of Courses , x 1 2 3 Probability, P ( X = x ) 46% 28% 26% What is the probability that a randomly selected part-time student at this college takes at least 2 courses? (That is, find P(X 2)
Part 5 of 6 - Poisson Distribution Knowledge Check Practice 5.0/ 5.0 Points Question 14 of 20 1.0/ 1.0 Points There are on average 5 old growth Sitka Spruce trees per 1/8 of an acre in a local forest. Find the probability that that there are exactly 30 Sitka Spruce trees in 1 acre in a remote part of the
Question 15 of 20 1.0/ 1.0 Points A bank gets an average of 11 customers per hour. Assume the variable follows a Poisson distribution. Find the probability that there will be 9 or more customers at this bank in one hour.
Question 16 of 20 1.0/ 1.0 Points The mean number of visitors at a national park in one weekend is 47. Assume the variable follows a Poisson distribution. Find the probability that there will be at most 55 visitors at this
Question 17 of 20 1.0/ 1.0 Points A coffee shop serves an average of 72 customers per hour during the morning rush. Find the probability that less than 59 customers arrive in an hour during tomorrow’s morning rush.
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P(x < 59) = P(x 58), In Excel =POISSON.DIST(58,72,TRUE) Question 18 of 20 1.0/ 1.0 Points A bank gets an average of 12 customers per hour. Assume the variable follows a Poisson distribution. Find the probability that there will be 10 or more customers at this bank in one
Part 6 of 6 - Probability Knowledge Check Practice 2.0/ 2.0 Points
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