Find the probability that fewer than four of them fail the test.

Car inspection: Of all the registered automobiles in a city, 5% fail the emissions test. Fifteen automobiles are selected at random to undergo an emissions test. Round the answers to at least four decimal places.Part 1 of 4(a) Find the probability that exactly four of them fail the test.The probability that exactly four of them fail the test is 0.0049.Part: 1 / 41 of 4 Parts CompletePart 2 of 4(b) Find the probability that fewer than four of them fail the test

The overall percentage of failure in a certain examination is 0.30. What is theprobability that out of a group of 6 candidates at least 4 passed the examination?(a) 0.74(b) 0.71(c) 0.59(d) 0.67

A student attempts a test with 10 multiple-choice questions, where each question has 4 possible options. She does not know the correct answer to any of the questions and randomly selects one of the 4 options for each of them. What is the probability that she will get 3 questions correct?10C3(1/4)1010C3(3/4)3(1/4)710C3(1/4)3(3/4)7Binomial probability cannot be used here.

In a math class with 24 students, a test was given the same day that an assignment was due. There were 15 students who passed the test and 19 students who completed the assignment. There were 3 students who failed the test and also did not complete the assignment. What is the probability that a student chosen randomly from the class failed the test?

The probability of happening an event A in one trial is 0.4. Find the probability that the event A happens at least one in three independent trials