9 al iractions completely. Give exact decimal solutions unless indicated 1.) The mean speed of vehicles...
9 al iractions completely. Give exact decimal solutions unless indicated 1.) The mean speed of vehicles along a streich of highway is 68 mph with a standard deviation [105 points) of 3 mph. [19 pt.] giving the appropriate numbers of mph and percents. 5%13 3413| 13所 0.1 b.) What percent of the cars in a random sample would you expect to be driving: [SHOW WORK.] i.) between 71 and 77 mph? ii.) more than 65 mph? 13. 54 73 % 3-54 c) How many cars in a random sample of 45 cars on the streicn of highway would you expect to be driving fewer than 62 mph? 2.) Explain the meaning of a score at the 73'" percentile. Seore i as apod 3.) The data set represents the numbers of vacation days used by a sample of 12 employ