A technical support center for computer problems received 24 calls. Of those, it is known that 5 of the computers had hardware problems; the rest had software issues. For training purposes, a new employee reviews 3 of these calls at random. What is the probability that her review will have exactly one call with hardware problems?

A statistics quiz has 10 multiple choice questions, where there are two incorrect options and one correct option to choose from. If someone didn’t study for the quiz and is randomly guessing on each of the 10 questions. What is the probability that a person who didn’t study and is guessing get at least 7 questions correct?

The following table shows the price per share of Apple stock at the beginning of different months. Calculate the four-month weighted moving average for October 2021. Round your answer to the nearest cent. Month July 2021 August 2021 September 2021 October 2021 November 2021 December 2021 Apple Stock Price Simple Moving Average Weighted Moving Average $136.60 $146.36 $152.83 $141.90 $148.99 $167.48 ???

According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that the Tampa Bay Buccaneers defense will have 3 or more sacks in the game is 0.07. The probability that the Bucs will both score a touchdown on their opening drive and have 3 or more sacks in the game is 0.34. The is the probability that they will either score a touchdown on the opening drive or have 3 or more sacks in the game is 0.20. What is the probability that the Bucs will score a touchdown on their first drive? Answer in decimal form. Round to two decimal places as needed.

According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that the Tampa Bay Buccaneers defense will have 3 or more sacks in the game is 0.05.  The probability that the Bucs will both score a touchdown on their opening drive and have 3 or more sacks in the game is 0.25.  The is the probability that they will either score a touchdown on the opening drive or have 3 or more sacks in the game is 0.25.  What is the probability that the Bucs will score a touchdown on their first drive? Answer in decimal form.  Round to two decimal places as needed.   Your Answer:

It is believed that 42% of American cell phone users have some version of an iPhone. If a random sample of 250 Americans with cell phones is taken, what is the probability the sample proportion of iPhone users will be greater than 45.5%?