rkain

06-26-2010, 02:21 PM

Can someone please help, I don't know why but this question is giving me trouble-I am having a mental block. Thanks.

The distance that one professional golfer can drive a golf ball has a normal distribution with a mean of 258 yards and a standard deviation of 6 yards.

What proportion of his drives exceed 280 yards in length?

How many yards should this golfer drive a ball so that the distance is among his longest 25%?

The distance that one professional golfer can drive a golf ball has a normal distribution with a mean of 258 yards and a standard deviation of 6 yards.

What proportion of his drives exceed 280 yards in length?

How many yards should this golfer drive a ball so that the distance is among his longest 25%?