Post a New Question

probability

posted by on .

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!

  • probability - ,

    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

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question