Lucy observed cars passing on a highway for 1 hour and recorded the data shown below. Vehicle Probabilities Type of Vehicle Probability Pickup Truck 0.24 Sedan 0.47 Sports Utility Vehicle 0.29 Lucy also noted that the probability that a given vehicle is a red pickup truck is 0.06. Assuming that vehicle color and ve is the probability that a given vehicle is red?

In one Introductory Statistics class, the probability that a student will pass the first test is 0.55. If the student passed the first test, the probability that they will pass the second test is 0.75. If they failed the first test, the probability that they will fail the second test is 0.7. a. Compute the probability that a student will fail the second test, given they passed the first test. b. Find the probability a randomly selected student will pass both tests. c. Find the probability that a randomly selected student will fail both tests. d. Find the probability that a randomly selected student will fail at least one of the tests.

Which of the following statements is true about a random variable? Explain your reasoning. a. A random variable represents all outcomes of an experiment and their probabilities. b. A random variable represents any single random outcome from an experiment. c. A random variable is the probability of an experimental outcome. d. A random variable's value is unknown.

The probability of Macayle having a "green" day is 0.81, and the probability of Callahan having a "Green" Day is 0.92. Whats the probability of Macyale or Callahan having a Green Day?