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givi
1 month ago
15

An accounting firm has recently recruited six graduates: three men and three women. Three of the graduates are to be selected at

random to work in the firm’s suburban office. Construct the probability tree. What is the probability that at least two women will be selected? Round your answer to three decimal places.
Mathematics
1 answer:
Leona [12.6K]1 month ago
6 0

Answer:

a) The probability tree has been created below

b) The likelihood of selecting at least two women is 0.500

Step-by-step explanation:

Based on the information provided in the question;

a) The constructed probability tree is outlined as follows;

                                                 3 men, 3 women

                                                            ↓

           _______________________|________________________

            ↓                             ↓                                  ↓                               ↓

         3 men                    2 men                          1 man                        0 men

      0 women                1 woman             2 women           3 women

b) The probability of having at least two women selected

p( at least two women would be selected) = P( there are 2 women out of 3 ) + P( there are 3 women out of 3 )

Thus,

p( at least two women would be selected) = C

³C₂ × ³C₁ / ⁶C₃ + ³C₃³C₀ / ⁶C₃  

= 3!/(2!(3-2)!) × 3!/(1!(3-1)!)  / 6!/(3!(6-3)!) + 3!/(3!(3-3)!) × 3!/(0!(3-0)!) / 6!/3!(6-3)!)

= 3 × 3 / 20 + 1 ×  1 / 20

= 9/20 + 1/20

= 0.45 + 0.05

p( at least two women would be selected) = 0.500

Thus, the probability of selecting at least two women is 0.500

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