SOLUTION: Tiger Woods average drive during the 2009 season was 298 yards with a standard deviation of 12 yards. Assume drives were approximately normally distributed. In a typical round of g

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Question 1103771: Tiger Woods average drive during the 2009 season was 298 yards with a standard deviation of 12 yards. Assume drives were approximately normally distributed. In a typical round of golf, Tiger plans to use his driver 14 times. About how many times can he expect his drive to land between 290 and 310 yards?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
z=(x-mean)/sd
z=(290-298)12=-2/3
z=(310-298)/12=1
probability of z between -2/3 and 1 is 0.5887. Multiply that by 14 and get 8.24. Eight times (8).