MS 150 Statistics Fall 2002 Quiz Five Name:

Heads (x) Freq P(x) x*P(x)
7 8 0.01  
6 76 0.06  
5 199 0.15  
4 370 0.28  
3 390 0.29  
2 236 0.18  
1 58 0.04  
0 8 0.01  
  1345 1.00  
  1. Based on the table above, what is the most common number of heads?
  2. Based on the table above, what is the probability of throwing seven heads, P(x=7)?
  3. Based on the table above, what is the probability of throwing three or more heads, P(x >= 3)
  4. Fill in the x*P(x) column and calculate the mean or expected number of heads.