Suppose that a committee of 12 people is selected in a random manner from a group of 100 people. Determine the probability that two particular people A and B will both be selected.

Statistics 1100 Week 1 01/27/2016 ▯ Stem-and-Leaf Display ▯ Histogram for exam data (C2, Exam Scores) How many classes to use o <50 observations 5-10 classes ex: sample size: 25 (n) #classes 5-10 What is the range o Largest observation – smallest observation = range 88.40-21.10 but DON’T WANT DECIMALS 90 – 20 = 70 (good whole number) Width of class interval o Range/ number of classes = class width 70 / 7 = 10 Class frequency o # of observations in