Math Probability ?

A bag contains 6 nickels, 5 dimes, and 9 quarters. If you draw 3 coins at random from the bag, without replacement, what is the probability that you will get a nickel, a quarter, and a nickel, in that order?

4 Answers

Relevance
  • 2 weeks ago

    Draw 1: P = 6/(6+5+9) = 6/20 = 3/10

    Draw 2: P = 9/(5+5+9) = 9/19

    Draw 3: P = 5/(5+5+8) = 5/18

    Multiply them together and you get (3/10) * (9/19) * (5/18) = 135/3420 = 3/76 = 0.039

  • 2 weeks ago

    for the first coin, it is 6/20

    for the second coin, it is 9/19

    for the 3rd coin, it is 5/18

    multiply them together to get

    (6/20)(9/19)(5/18)

    (6/4)(9/19)(1/18)

    (3/2)(1/19)(1/2)

    3/76 or 0.0395

  • Anonymous
    2 weeks ago

    A 3.95% chance.

  • Fuhr
    Lv 6
    2 weeks ago

    Seven              .

Still have questions? Get your answers by asking now.