Some 200 samples of a certain nylon fiber have been tested t

Some 200 samples of a certain nylon fiber have been tested to breakage for tensile strength. From these data, a frequency histogram has been prepared using a cell width of 25 gm. Using the short method and with an origin at 1,000 gm, Compute the values of X and s for this frequency distribution.

Solution

mean = 340 / 200 = 1.7

S = 1200 / 200 - (1.7)^2 = 3.11