President hoover responded cautiously to the great depression because he
a. thought that the business cycle would correct itself.
b. was distracted by the giant dust storms in the great plains.
c. did not have any experience with business methods and economic theory.
d. believed that the federal government needed to take an active approach to recovery.

Environmentalists are concerned about emissions of sulfur dioxide into the air. the average number of days per year in which sulfur dioxide levels exceed 150 milligrams per cubic meter in milan, italy, is 29. the number of days per year in which emission limits are exceeded is normally distributed with a standard deviation of 4.0 days. what percentage of the years would exceed 37 days?