C957 Unit 2 Module 3 questions and answers with detailed solutions

You begin a weight-lifting program. For five weeks, you use a table to record the average weight you were able to lift. Week Number Weight Lifted (in pounds) 1 20 2 25 3 35 4 35 5 40 What is the overall trend for this data? A) The amount of weight you are able to lift is trending positively. B) There is no change. C) There is too much variation in the data patterns to describe a trend. D) The amount of weight you are able to lift is trending negatively. - ANSThe amount of weight you are able to lift is trending positively. You are trying to find the most profitable snack in the snack machine so you know what to order next time. The following table represents the results: Snack Type Number of Items Sold Gross Profit Chips 57 $71.25 Cookies 48 $72.00 Candy 82 $82.00 Gum 120 $60.00 Which type of snack is most profitable per item? - ANSCookies Refer to the following table predicting a future with robots and total hours saved for citizens. Year Gross U.S. Population in millions Citizens with One Robot Total Hours Saved Citizens with Two Robots Total Hours Saved Citizens with Three Robots Total Hours Saved 2060 420.20 6% 378,180,000 4% 470,624,000 1% 189,090,000 2065 445.41 8% 534,494,400 6% 748,292,160 3% 601,306,200 2070 472.14 12% 793,189,690 9% 1,019,815,315 4% 793,189,690 2075 500.46 16% 1,121,041,428 12% 1,441,338,979 6% 1,261,171,606 2080 530.49 19% 911,110,897 13% 1,217,209,461 7% 1,136,841,903 2085 562.32 24% 854,445,850 14% 1,031,952,954 8% 1,019,488,477 Over what years was the total hours saved for citizens with one robot increasing? The options below are expressed in interval notation. A) (2060, 2075) B) (2060, 2075] C) [2060, 2075) D) [2060, 2075] - ANS(2060, 2075)