Answer
By Empirical rule, when k =1, the minimum percentage will be 68%
By Empirical rule, when k =2, the minimum percentage will be 95%
By Empirical rule, when k =3, the minimum percentage will be 99.7%
a.
i.
200-20k = 180
K=1,
minimum percentage 68%
ii.
200-20k = 1160
K=2,
minimum percentage = 95%
b. By Empirical rule, when k =3, the minimum percentage will be 99.7%
Interval = [200-3(20), 200+3(20)]
=[140, 260]
Work Step by Step
no.