Asked by nitz
a couple is planning to have three children. Find the probability that the couple will have:
a.) 2 girls and 1 boy?
b.) 2 girls followed by a boy?
c.) at least 1 girl?
please answer my question thank you very much, have a good day!
a.) 2 girls and 1 boy?
b.) 2 girls followed by a boy?
c.) at least 1 girl?
please answer my question thank you very much, have a good day!
Answers
Answered by
Reiny
There are 8 ways to have B G
a)2 girls and 1 boy ---> GGB GBG BGG
Prob = 3/8
b) 2 girls followed by boy --->GGB
prob = 1/8
c) at least one girl, means exclude BBB
prob = 1 - 1/8 = 7/8
a)2 girls and 1 boy ---> GGB GBG BGG
Prob = 3/8
b) 2 girls followed by boy --->GGB
prob = 1/8
c) at least one girl, means exclude BBB
prob = 1 - 1/8 = 7/8
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