Table Window Help ECO 222_EXAM #1 REVIEW (CHAPTERS 1,2 &3) ... Mailings Review View Acrobat ? Tell me ayout References A A Aav E Styles Styles Dictate Editor Creat A Ad Av DV Pane number within the count. > The ages of 50 students who are attending a community college in Iowa are shown below: 20 20 19 21 21 22 19 19 21 19 18 21 19 18 22 21 24 20 24 17 21 19 22 19 18 20 23 19 19 20 19 20 21 22 21 20 22 20 21 20 21 19 21 21 19 19 20 19 19 19 You need to know how to prepare an ungrouped frequency distribution of these ages and an ungrouped relative frequency distribution of the same data. You must know how to calculate sample mean, how to find the variance and the standard deviation > The points scored by the winning teams on opening night of a recent NBA season are shown in the table below: Team Detroit Dallas Chicago Score 90 110 92 DX English (United States) Focus