A sample of the diameters of plumbing pipes approximates a symmetrical, bell-shaped distribution. The arithmetic mean is
Posted: Tue Jul 05, 2022 9:19 am
A sample of the diameters of plumbing pipes approximates asymmetrical, bell-shaped distribution. The arithmetic mean is 15.0inches, and the standard deviation is 0.20 inches. Based onthe Empirical rule, what percent of the observations will liebetween 14.80 inches and 15.40 inches?
97.4%
83.9%
95.0%
68.0%
97.4%
83.9%
95.0%
68.0%