The data below was obtained from a random survey of 459459 people. The participants were asked their political party and whether they approve, disapprove, or have no opinion of how the president is doing his job. The results of the survey are as follows: Democrat Republican Independent Total Approve 103 56 8 167 Disapprove 109 123 5 237 Undecided 27 28 5 55 Total 239 207 18 459 If a person if selected at random, what is the empirical probability that the the person approves of the job the president is doing or is an independent?

Use the data in the table below, which shows the employment status of individuals in a particular town by age group. Age Full-time Part-time Unemployed 0—17 27 180 360 18—25 190 198 233 26—34 317 71 26 35—49 462 183 192 50+ 356 165 258 If a person is randomly chosen from the town's population, what is the probability that the person is under 18 or employed part-time?

A group of students at a local university were asked about their status (undergraduate, graduate, or non-degree seeking) and how they get to campus (walk/bike or car/bus/etc.). The results are summarized in the table below. How do you get to Campus? Walk/Bike Car/Bus/etc. Total Undergraduate 80 20 100 Graduate 40 10 50 Non-degree Seeking 10 40 50 Total 130 70 200 Suppose we choose a person at random from this sample. Which of the following statements is true? (A) If the person uses a car/bus/etc. to get to campus, then he or she is more likely to be a non- degree seeking student than a degree seeking student (undergraduate or graduate). (B) If the person is an undergraduate, then he or she is more likely to use a car/bus/etc. to get to campus than to walk/bike to campus. (C) The person is more likely be a graduate student if he or she uses a car/bus/etc. to get to campus than if he or she walks/bikes to campus. (D) The person is more likely to use a car/bus/etc. to get to campus than…

Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. a. Express the confidence interval in the format that uses the​ "less than" symbol. Given that the original listed data use one decimal​ place, round the confidence interval limits accordingly.   Mbps less than muless than Mbps ​(Round to two decimal places as​ needed.) b. Identify the best point estimate of mu and the margin of error.  ​(Round to two decimal places as​ needed.)   c. The margin of error isE equals    Mbps. ​(Round to two decimal places as​ needed.)