the index for the first quartile View History Bookmarks Tools Window Help 175001
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the index for the first quartile View History Bookmarks Tools Window Help 1750011941243191 610021e7&etsaNw9781285511078as;& uindex.htmnmbld 48512sanbNodeld-1m62215sdeploymentide4 com/static nb NDTAP ST 260002 Homework 2. Activity Infom Due Today at 11 PM CST file WE 26.2 Phoenix 28.3 ?83 Kansas City 23.4 28.4 Portland 26.4 Las Vegas 20.1 32.1 Little Rock 31.7 Los Angeles 32.2 Richmond 23.4 21.4 saaamerato 25.8 38.1 Memphis 238 Salt Lake City 20.2 249 26.8 24.8 24.8 San Diego 234 Minneapolis 23.6 San Francisco Nashville 28.5 31.7 29.3 ew York 43.8 St. Louis 24.4 24.0 230 24.8 Philadelphia 34.2 Washington, DC a. What is mean commute time for these 48 cities? Round your answer to one decimal place. what is medan commute time for these cites Round your answer to two dedmal places. MacBook ProExplanation / Answer
There are n=48 cities in the data base. The number is even. Therefore, the first quartile is located at 1/4*n, followed by second quartile at 1/2*n and third quartile at 3/4*n. Assume the data is sorted in ascending order.
Thus, the index of the first quartile is 1/4*48=12
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