Question 1 A survey asked adult Americans (18 years or older) whether they used social media regularly. The result shows in table below: 18-34 35-44 45 -54 585 + Use social media 117 &9 &3 49 Do not use social media 33 36 57 66 a). If an adult American is randomly selected, what is the probability he or she uses social media? b). If an adult American is randomly selected, what is the probability he or she is 45 to 54 years old? c). If an adult American is randomly selected, what is the probability he or she is 35 to 44 years old and use social media? d). If an adult American is randomly selected, what is the probability he or she is 35 to 44 years old or use social media? Question 2 Clarinex-D is a medication whose purpose is to reduce the symptoms associated with a variety of allergies. In clinical trials of Clarinex-D, 5% of the patients in the study experienced insomnia as a side effect. A random sample of 20 Clarinex-D users is obtained, and the number of patients who experienced insomnia is recorded. Use Excel or formula to complete the following questions a) to d). a). Compute the probability that exactly 3 experienced insomnia as a side effect b). Compute the probability that 3 or fewer experienced insomnia as a side effect ). Find the probability that between 1 and 4 patients inclusive, experienced insomnia as a side effect. d). Would it be unusual to find 4 or more patients who experienced insomnia as a side effect? Why? Question 3 Traffic fatalities occur at the rate of 1.32 fatal accidents per 100 million miles. Find the probability that, during the next 100 million vehicle miles, there will be a). Exactly zero fatal accidents. Interpret the result. b). A least one fatal accident. Interpret the result. c). More than one fatal accident. Interpret the result