1. (10 points) The following table gives the number of days in which selected metropolitan areas failed to meet air-quality standards in 1986, 1996, 2006, and 2016. We use the number of days unhealthy plus the number of days very unhealthy as collected from theEPA Air Quality Index Report(Links to an external site.)

https://www.epa.gov/outdoor-air-quality-data/air-quality-index-report

*Course Hero X s Module 3 Assignment: Statistic X Air Quality Index Report | Air D: X + C canvas.asu.edu/courses/81668/assignments/2274585?module_item_id=5830684 1 website mentioned in the Lecture notes. SCUR Data Dinov UZU 108 Heightsweights 2 . Define Intervals [X,y) for the bars ASu . If the link above does not work, please use this Excel file & 5. (10 points) The following table gives the number of days in which selected metropolitan areas failed to meet air- Account quality standards in 1986, 1996, 2006, and 2016. We use the number of days unhealthy plus the number of days very unhealthy as collected from the EPA Air Quality Index Report . Dashboard 1986 1996 2006 2016 Atlanta 36 30 29 4 Courses Baltimore 43 25 15 5 Boston 15 8 3 0 Groups Chicago 42 11 4 5 898 Dallas 44 26 28 1 Calendar Houston 66 35 31 1 Los Angeles 195 79 52 25 Inbox Miami 6 1 2 New York 56 31 21 2 History Philadelphia 41 40 19 2 ? Phoenix Help Pittsburgh 71 39 19 Washington, DC 40 19 21 0 a. Find the data for Phoenix. b. Find the sample mean and median for 1986, 1996, 2006, and 2016. c. What can you conclude from the difference between the mean and median about the distribution of air quality of metropolitan areas? K 6. (10 points) A zoologist collected wild lizards in the Southwestern United States. Thirty lizards from the genus