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bachelor in business administration
Polytechnic State University Sanluis
Jan-2006 - Nov-2010
CPA
Polytechnic State University
Jan-2012 - Nov-2016
Professor
Harvard Square Academy (HS2)
Mar-2012 - Present
2.4Â Â Â Â Â Â The following are the menarchal ages (in years) of 56 female swimmers who began training after they had reached menarche.
Â
14.0 |
16.1 |
13.4 |
14.6 |
13.7 |
13.2 |
13.7 |
14.3 |
12.9 |
14.1 |
15.1 |
14.8 |
12.8 |
14.2 |
14.1 |
13.6 |
14.2 |
15.8 |
12.7 |
15.6 |
14.1 |
13.0 |
12.9 |
15.1 |
15.0 |
13.6 |
14.2 |
13.8 |
12.7 |
15.3 |
14.1 |
13.5 |
15.3 |
12.6 |
13.8 |
14.4 |
12.9 |
14.6 |
15.0 |
13.8 |
13.0 |
14.1 |
13.8 |
14.2 |
13.6 |
14.1 |
14.5 |
13.1 |
12.8 |
14.3 |
14.2 |
13.5 |
14.1 |
13.6 |
12.4 |
15.1 |
Â
(a)   Form a frequency distribution using the same age intervals as in Exercise 2.3. (These intervals may be di¤erent from those in Exam- ple 2.3.)
(b)   Display on the same graph two cumulative frequency graphs, one for the group trained before menarche and one for the group trained after menarche. Compare these two graphs and draw your conclu- sion.
(c)Â Â Â Â Find the median and 95th percentile and compare to the results of Exercise 2.3.
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