SOLUTION: A large electronics firm employs many disabled workers. The number of workers and type of disability are summarised in the table below: Employee’s Performance

Question 1204048: A large electronics firm employs many disabled workers. The number of workers and type of disability are summarised in the table below:

Employee’s Performance

Above average Average Below average Total

Blind 21 64 17 102

Deaf 16 49 14 79
No Disability 29 93 28 150

Total 66 206 59 331

If an employee is selected at random, what is the probability that:
4.1 The employee will have no disability?
4.2 The employee will be blind?
4.3 The employee will perform above average given that he/she is blind?
4.4 The employee will either be blind or perform above average?
4.5 Are the events above average performance and no disability independent events? Show calculations to substantiate your answer.
4.6 A coin is tossed three times. Find the probability of obtaining:
4.6.1 All heads
4.6.2 Two heads and one tail

Answer by ikleyn(52814) (Show Source): You can put this solution on YOUR website!
.

I will solve the second problem, ONLY, which is 4.6, 4.6.1, 4.6.2.

4.6.1.  P =  = .    ANSWER


        In wording form: in all, 8 outcomes are possible:

            (1)  H H H

            (2)  H H T

            (3)  H T H

            (4)  H T T

            (5)  T H H

            (6)  T H T

            (7)  T T H

            (8)  T T T

    Of them, only one outcome is favorable: it is (H H H).

    It gives the probability  .




4.6.2.  In the list of possible outcomes above, 
        find all outcomes with two H and one T.

        There are three such outcomes.  They are  (2), (3) and (5).

        Therefore, the probability in this problem is  P = .    ANSWER

Solved.

///////////////////

Do not pack more than ONE problem per post.

RELATED QUESTIONS
A cetain factory employs 60 workers. If four out of five workers are married, how... (answered by lynnlo)

A company has a total of 35 apprentice workers and journeyman workers on a job site. The... (answered by josgarithmetic)

A warehouse employs 27 workers on first shift, 19 workers on second shift, and 14 workers (answered by ikleyn)

A warehouse employs 24 workers on first shift, 17 workers on second shift, and 13 workers (answered by greenestamps)

Hi there are 403 workers in a factory.3/5 of the male workers and 3/4 of the female... (answered by Theo,richwmiller)

A warehouse employs 24 workers on first shift and 17 workers on second shift. Eight... (answered by ccs2011,stanbon)

Cuold you please help me understand what formula to use for this problem? A warehouse... (answered by MathLover1,Boreal,KMST)

One factory employs 35 male and 20 female workers. The factory owner wanted to form A... (answered by ikleyn)

a factory in Tuas has 1700 workers. y% of the workers are female. what is the total... (answered by oscargut)