Statistical Sciences 2035 Study Guide - Midterm Guide: Interquartile Range, Standard Deviation, Fair Coin
12 Oct 2013
School
Department
Professor
Document Summary
Statistics 2035 midterm #1 -- practice questions #2: a manager has just received the expense cheques for twelve of her employees. She randomly distributes the checks to all the employees. What is the probability that exactly eleven of them will receive the correct cheques (cheques with the correct names): 1, 1/11, 1/12, 0, 1/6. Use the following information for the next two questions: An automatic dispensing machine dispenses a certain beverage into a 20 ounce cup. Answer: __________: it turns out that 25% of all cups filled by this machine have c-ounces or less in them. Answer: __________: you are given the following sample data (with one data value missing): What is the variance of x: 15, 7. 5, 2. 74, 0. 25, 1, let the random variable x represent the amount of time spent studying for this exam. Suppose that x is approximately normal with a mean, of 20 hours and a standard deviation, = 6.
