Basic Applied Statistics 200
Solutions to Practice Midterm 1

1.  
   1. (i) skewed left
   2. (i) less than 9
   3. 5,7.5,9,9,10
   4. (i) Five Number Summary
   5. 71
2. 1. Use stems 2, 3, 4, and 5 ...
   2. no
   3. 47
   4. 41
   5. (iii) 13
3.  
   1. .7190
   2. .0206
   3. 1.28
   4. -.67
4. 1. .0594
   2. .0009
   3. 10
   4. 7.312
5.  
   1. temperature
   2. (i) positive (iii) linear (v) strong
   3. .9
   4. .9
   5. 43.55, -8.55
   6. (ii)
   7. (iii)
   8. 81.2%
6. 1. those who did use a sketch: 30/47=.64 vs. 15/25=.60
   2. 30/45=.67
   3. 10/72=.14
7. 1. (i)
   2. (iv)
8. 1. 8
   2. (ii)

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