The finishing times for swimmers performing the 100-meter butterfly are normally
distributed with a mean of 55 seconds and a standard deviation of 5 seconds.
Let's Do It!
FEEDBACK
The sponsors decide to give certificates to all those
swimmers who finish in under 49 seconds. If there are 50 swimmers entered in
the 100-meter butterfly, approximately how many certificates will be needed?
What time must a swimmer finish to be in the top fastest
2% of the distribution of finishing times? Remember, shorter times are better.