Problem 1174

If there are where multiple-choice questions on an exam, each having four possible answers, how many different sequences of answers are there?   Solution:-   If any one of k…

Problem 1170

Complete the following sentence. If a particle has a speed of r feet per second and travels a distance d (in feet) in time (in seconds), then d = ______________.…

Problem 1167

A pair dice is rolled. What is the probability of getting a sum of 8?   Solution:-   To find the probability of an event, denoted P(E), you need to…

Problem 1166

If the probability is 0.81 that a candidate wins the election, what is the probability that he loss?   Solution:-   Suppose that we divide a final sample space into…

Problem 1164

Is the selection a permutation, a combination, or neither? A group of 10 friends sits in the same row in a movie theater.   Solution:-   Use the definition of…