Share
Explore BrainMass

Probability of applying for an assembly job

PROBLEM 4
Out of 11 people applying for an assembly job, 3 cannot do the work. Suppose two persons will be hired.
(a) How many distinct pairs are possible?
(b) In how many of the pairs will 0 or 1 people not be able to do the work?
(c) If two persons are chosen in a random manner, what is the probability that neither will be able to do the job?

Solution Preview

Solution.
<br>
<br>(a) Since there are 11 people, there are C(11,2)=11*10/2!=55 distinct pairs are possible.
<br>
<br>(b) We count them separately.
<br>
<br> First, we ...

Solution Summary

PROBLEM 4
Out of 11 people applying for an assembly job, 3 cannot do the work. Suppose two persons will be hired.
(a) How many distinct pairs are possible?
(b) In how many of the pairs will 0 or 1 people not be able to do the work?
(c) If two persons are chosen in a random manner, what is the probability that neither will be able to do the job?

$2.19