The lengths of 100 pipes have a normal distribution with a mean of 102.4 inches
and a standard deviation of 0.2 inch. If one of the pipes measures exactly 102.1
inches, its length lies [1] below
the 16th percentile
[2] between the 16th and
50th percentiles
[3] between the 50thand
84th percentiles
[4] above the 84th percentile
发表于 2012-12-11 10:24:00
