The data in the table gives the percentage of MySpace users who are a certain age. MySpace Users Use the data for males. a. Align the input data to the number of years over 17 . Write an exponential model for the male MySpace user data. b. According to the model in part a, what is the percentage change in the percentage in your model? c. What percentage of male MySpace users are 18 years old? 20 years old? Are these answers found using extrapolation or interpolation? | Numerade

America's young people are heavy Internet users; 87 % of Americans ages 12 to 17 are Internet users (The Cincinnati Enquirer, February 7,2006 ). MySpace was voted the most popular Web site by 9 % in a sample survey of Internet users in this age group. Suppose 1400 youths participated in the survey. What is the margin of error, and what is the interval estimate of the population proportion for which MySpace is the most popular Web site? Use a 95 % confidence level. | Numerade

Instagram launches Myspace-like feature, lets users add songs to profiles