The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.25 inches and a standard deviation of 0.01 inches. What percentage of bolts will have a diameter greater than 0.24 inches?

Question

The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.25 inches and a standard deviation of 0.01 inches. What percentage of bolts will have a diameter greater than 0.24 inches?
  A. 79.13% 	
  B. 82.46% 	
  C. 84.13% 	
  D. 84.46%

answer:C

Reiny · Answer

correct, I use http://davidmlane.com/normal.html

Reiny · Answer

correct