c) With random guessing, show that the probability of getting at least one question wrong is 0.999.

Kelly realized that 4% of his students' exams have academic integrity issues.  He plans to go through the exams at random to find one with academic integrity issues.  Let X be the number of exams Kelly selects until he finds one with academic integrity issues.   a) Find the probability that the 18 th exam Kelly selects will be the first with academic integrity issues. State your answer as a percentage rounded your answer to 2 decimal places. b) What is the probability of finding an exam with academic integrity issues within the first 5 exams? Round your answer to 3 decimal places.

What is the probability of a z score greater than -1.97?

What is the probability z will be less than -1.88 OR greater than 1.31?

Assume that when adults with smartphones are randomly selected, 52% use them in meetings or classes. If 25 adult smartphone users are randomly selected, find the probability that exactly 19 of them use their smartphones in meetings or classes. The probability is. (Round to four decimal places as needed.)

1000 us adults were asked about their online vs. in store clothes shopping. One finding was that 32% of respondents never clothes-shop online.   How do I find the probability that the pecentage of respondents who never shop online is below 33.3%