Exam 2, STAT:3100, Fall 2016
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> mean(e2)
[1] 77.17647

> sqrt(var(e2))
[1] 14.15303

> stem(e2,scale=10)

  The decimal point is at the |

  40 | 0
  41 | 
  42 | 
  43 | 
  44 | 
  45 | 
  46 | 
  47 | 0
  48 | 
  49 | 
  50 | 0
  51 | 
  52 | 
  53 | 
  54 | 
  55 | 0
  56 | 00
  57 | 
  58 | 0
  59 | 
  60 | 0
  61 | 
  62 | 
  63 | 0
  64 | 0
  65 | 
  66 | 00
  67 | 0
  68 | 
  69 | 
  70 | 00
  71 | 00
  72 | 
  73 | 0
  74 | 0
  75 | 0
  76 | 0
  77 | 
  78 | 
  79 | 00
  80 | 00000
  81 | 00
  82 | 0
  83 | 0
  84 | 
  85 | 000
  86 | 000
  87 | 0
  88 | 
  89 | 
  90 | 000
  91 | 
  92 | 000
  93 | 0
  94 | 
  95 | 00
  96 | 0
  97 | 
  98 | 
  99 | 00

> quantile(e2,seq(0,1,by=0.01))
  0%   1%   2%   3%   4%   5%   6%   7%   8%   9%  10%  11%  12%  13%  14%  15% 
40.0 43.5 47.0 48.5 50.0 52.5 55.0 55.5 56.0 56.0 56.0 57.0 58.0 59.0 60.0 61.5 
 16%  17%  18%  19%  20%  21%  22%  23%  24%  25%  26%  27%  28%  29%  30%  31% 
63.0 63.5 64.0 65.0 66.0 66.0 66.0 66.5 67.0 68.5 70.0 70.0 70.0 70.5 71.0 71.0 
 32%  33%  34%  35%  36%  37%  38%  39%  40%  41%  42%  43%  44%  45%  46%  47% 
71.0 72.0 73.0 73.5 74.0 74.5 75.0 75.5 76.0 77.5 79.0 79.0 79.0 79.5 80.0 80.0 
 48%  49%  50%  51%  52%  53%  54%  55%  56%  57%  58%  59%  60%  61%  62%  63% 
80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.5 81.0 81.0 81.0 81.5 82.0 82.5 83.0 84.0 
 64%  65%  66%  67%  68%  69%  70%  71%  72%  73%  74%  75%  76%  77%  78%  79% 
85.0 85.0 85.0 85.0 85.0 85.5 86.0 86.0 86.0 86.0 86.0 86.5 87.0 88.5 90.0 90.0 
 80%  81%  82%  83%  84%  85%  86%  87%  88%  89%  90%  91%  92%  93%  94%  95% 
90.0 90.0 90.0 91.0 92.0 92.0 92.0 92.0 92.0 92.5 93.0 94.0 95.0 95.0 95.0 95.5 
 96%  97%  98%  99% 100% 
96.0 97.5 99.0 99.0 99.0