Basic Applied Statistics 200
Solutions to Practice Quiz 4

1.  
   1. 0.67
   2. 0.25
   3. 0.1(0.1)=0.01
2.  
   1. 140+60+240=440
   2. (140+60+240)/2000=.22
   3. 60
   4. 60/2000=.03
   5. age, (ii)
   6. 60/200=.30
   7. 240/1800=.13
   8. Yes: proportions seem very different.
   9. 30, 270

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