Basic Applied Statistics 200
Solutions to Practice Quiz 5

1.  
   1. (140+60+240)/2000=.22
   2. 60/2000=.03
   3. age, (ii)
   4. 60/200=.30
   5. 240/1800=.13
   6. Yes: proportions seem very different.
   7. 30, 270
2.  
   1. 0(.78)+1(.14)+2(.04)+3(.02)+4(.01)+5(.01)=.37
   2. (ii)
   3. (ii)
   4. no
3.  
   1. .50
   2. (i)
   3. (ii)
   4. 11, 20, .50, .55

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