Answer
n = 8, p = 14% = 0.14
a. Mean = n x p
= 8 x 0.14 = 1.1
b. Variance = n x pq where q = 1-p
= n x p(1-p)
= 8 x 0.14 (1-0.14)
= 8 x 0.14 (0.86) = 1.0
S.D = \sqrt Variance
= \sqrt 1.0
= 1.0
d. On average, 1.1 out of 8 drivers are uninsured. Most samples of 8 drivers will differ from mean by 1 (standard Deviation).
Work Step by Step
As given in answer