Social Media Use. A marketing firm would like to test-market the name of a new energy drink targeted at 18- to 29-year-olds via social media. A study by the Pew Research Center found that 35% of U.S. adults (18 and older) do not use social media (Pew Research Center website, October 2015). The percentage of U.S. young adults age 30 and older is 78%. Suppose that the percentage of the U.S. adult population that is either age 18–29 or uses social media is 67.2%.a. What is the probability that a randomly selected U.S. adult uses social media?b. What is the probability that a randomly selected U.S. adult is aged 18–29?c. What is the probability that a randomly selected U.S. adult is 18–29 and a user of social media?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.