9.28. The length of time until a strike is settled is distributed uniformly from

0 to 10.5 days. (See the previous problem for an introduction to the

uniform density.)

a. Find the probability that a strike lasts less than 1 day.

b. Find the probability that a strike lasts less than 6 days.

c. Find the probability that a strike lasts between 6 and 7 days.

Find the conditional probability that a strike lasts less than 7 days,

given that it already has lasted 6 days.

d.

e. Compare your answers with those from Problem 9.12.