SOLUTION: Two industrial cleaning products salesman A and B, must each make two calls per day, one in the morning and one in the afternoon. Salesman A has a probability of 0.45 of selling a

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Question 1145124: Two industrial cleaning products salesman A and B, must each make two calls per day, one in the morning and one in the afternoon. Salesman A has a probability of 0.45 of selling a cleaner on any call, while salesman B (a novice) has a probability of 0.2 of a sale. The two salesman work independently of each other, and each salesman’s morning and afternoon results are independent of each other.
1.1) Find the probability that salesman A makes one sale for the day (rounded off to three decimals)
Answer by ikleyn(52842)   (Show Source): You can put this solution on YOUR website!
.

    P(A makes one sale) = 0.45 + 0.45 - 0.45*0.45 = 0.6975.


                          (one success in the morning OR (i.e. PLUS) one in the afternoon MINUS the probability of BOTH)

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For introductory lessons on Probability, see
    - Simple and simplest probability problems
    - Solving probability problems using complementary probability
    - Elementary Probability problems related to combinations
    - A True/False test
    - A multiple choice answers test
    - A shipment containing fair and defective alarm clocks
    - A drawer contains a mixture of socks
    - Probability for a computer to be damaged by viruses
    - Conditional probability problems
    - Typical probability problems from the archive
    - Experimental probability problems
    - OVERVIEW of lessons on Probability
in this site.

Also,  you have this free of charge online textbook in ALGEBRA-II in this site
    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic  "Combinatorics: Combinations and permutations".


Save the link to this textbook together with its description

Free of charge online textbook in ALGEBRA-II
https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson

into your archive and use when it is needed.


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