To the right are the outcomes that are possible when a couple has three children

Question

To the right are the outcomes that are possible when a couple has three children. Refer to that list, 1st 2nd and find the probability of each event a. Among three children, there are exactly 3 boys. b. Among three children, there is exactly 1 girl c. Among three children, there are exactly 0 girls. 3rd o boy boy boy boy - boygir boy - girl- boy boy girn girl girl - boy- boy girl-boy-girl gil girl -boy girl -girl girn a. What is the probability of exactly 3 boys out of three children? (Type an integer or a simplified fraction.) b. What is the probability of exactly 1 girl out of three children? (Type an integer or a simplified fraction.) c. What is the probability of exactly 0 girls out of three children? (Type an integer or a simplified fraction.) ont Enter your answer in each of the answer boxes a Librany 12/15/17 Test Chapters 4 5 &6

Explanation / Answer

Solution :

total number of possibilities = 8

( a )

possibilty of getting exacty 3 boys = n (bbb )= 1

probability of getting exactly 3 boys = 1/8 = 0.125

  ( b )

possibilty of getting exacty 1 girl = n (bbg , bgb, gbb )= 3

probability of getting exactly 1 girl = 3/8 = 0.375

( c )

possibilty of getting exacty 0 girls = n (bbb )= 1

probability of getting exactly 0 girls = 1/8 = 0.125

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