Suppose that 20% of all personal computers of a certain brand break down in the first year of operations. In an office with 10 such computers, find the probability that:

a) none break down;

b) exactly five break down;

c) at least one breaks down;

d) at most two breaks down;

e) all break down.

Answer rating: 100% (QA)

Given p 020 20 q 1p 1020 080 n 10 a PX 0 n C x p x q ... View the full answer