An important measure of the performance of a locomotive is its "adhesion," which is the locomotive's pulling force as a multiple of its weight. The adhesion of one 4400-horsepower diesel locomotive model varies in actual use according to a Normal distribution with mean μ = 0.39 and standard deviation σ = 0.036
What proportion of adhesions (± 0.001) measured in use are higher than 0.32?
What proportion of adhesions (± 0.001) are between 0.32 and 0.45?
Statistics - PsyDAG, Thursday, September 6, 2012 at 1:44am
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
Statistics - Teddy, Wednesday, October 7, 2015 at 11:56pm
I don't know, I need help too