2.15 is .85 below the mean
this is .85/.5 s.d. (1.7)
use a z-score table to find the fraction of the population in this range
about .045
the diameter of red apples of an orchard have a normal distribution with a mean of 3 inches ans standard deviation of 0.5 inches one apple will be randomly chosen. what is the probability of picking an apple with a diameter less than 2.15 inches
1 answer
1 answer