When the question asks in part B ( select ) the options are left skewed , approx
ID: 3068930 • Letter: W
Question
When the question asks in part B ( select ) the options are left skewed , approximately symmetric, right skewed
0 You have 2 days loft in your Cengage Unlimited subecription trial. Leam more for leas with access to over 22,000 abooks and digtal eaming products. Upgrade Today 3700 10 A report gave data on the traffic fetality rate (traffic deaths per 100,000 population) for 2014 for each of the so u.5. states and the District of Columbia. A stem-and-leat display for the fatality rate data using repeated stems is shown here Stem-and-leaf display for the fatality rate data Stems: tens Leaves: ones 0 5 6 6 7778899 99999 1 0 0 0 001122 2 3 3333 4444 1 55556 67 778 2 o 2 3 Some, but not all, states enforce seat belt laws. Below are the fatality rate data divided into two groups-states that enforce seat belt laws and those that do not. States with Seat Belt Law Enforcement 17 918 8 713 3 15 14 10 7 23 6 14 14 1611 4 20 15 138 15 10 States without Seat Belt Law Enforcement 13 10 13 14 22 1319 17 10 9 159 99 25 5233 SEP tinal tup (exe
Explanation / Answer
W=c(17,9,18,8,7,13,3,15,14,7,8,12,10,12,17,16,12,9,
0,7,23,6,14,6,14,16,11,4,20,15,13,8,15,10)
WO=c(13,10,13,5,14,22,13,11,9,17,10,9,15,9,9,9,25)
stem(W, scale=0.5)
stem(WO, scale=0.5)
stem(W, scale=0.5)
The decimal point is 1 digit(s) to the right of the |
0 | 034
0 | 6677788899
1 | 00122233444
1 | 55566778
2 | 03
> stem(WO, scale=0.5)
The decimal point is 1 digit(s) to the right of the |
0 | 599999
1 | 001333457
2 | 25
(b) The shape of the distribution of states with seat belt enforcement is approximate symmetric and its center is 12.
The shape of the distribution of states without seat belt enforcement isright skewed and its center is 11.
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