Steve sang a song so bad it made 10 students laugh. Each of those 10 students made 10 other students laugh. If Steve was laughing at himself too, how many students, including Steve, were laughing by the end?

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%