7 people were surveyed. The following chart represents the number of books read and candy bars consumed by each person during the spring semester. Number of books read Candy bars consumed 3 9 5 1 2 7 3 6 4 5 5 4 1 10 (a) Sketch a scatterplot on your scratch paper. A rough sketch is fine, showing the basic shape. Did you do this? [check] (b) Calculate the best fit line. Round to two decimal places.
Read Details40% of workers have taken their vacation time by July. Suppose 75 workers are selected at random. Show your calculator steps on parts b and c on your scratch paper. (a) What is the expected number of workers that have taken their vacation time by July? [mean] (b) Find the probability that exactly 28 workers have taken their vacation time by July. Round to three decimal places. [28] (c) Find the probability that at most 35 workers have taken their vacation time by July. Round to three decimal places. [35]
Read DetailsDuring the Boston marathon bombings, users on the Internet misidentified a man, Sunil Tripathi, as one of the perpetrators of the bombing. A Buzzfeed journalist retweeted this information on his twitter handle. Which of the following concepts are at work here?
Read DetailsYou are a small tea/coffee shop interested in promoting your business. In order to get your business website to show up on search result pages, you study which keywords you must have, which websites to link to, and what sort of web design works best. You are not paying to do this. You are engaging in which activity?
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