Math

I need help with these probability problems.

1). Five chips are selected from a bag without replacement. The bag originally contained 6 yellow chips and 8 red chips. In how many ways can you choose 5 chips from the bag?

I did 14 C 5 and got 2002, is that correct.

2). In how many ways can you choose no yellow chips?

  1. 👍 0
  2. 👎 0
  3. 👁 115
asked by Kelsey
  1. no

    you have to look at the results,
    you have 5 chips selected, that could be one of the following cases :
    0Y 5R .... RRRRR, only 1 way OR 5!/0!5!)
    1Y 4R .... YRRRR, OR RYRRR, ... 5!/4! = 5
    2Y 3R .... 5!/(2!3!) = 10
    3Y 2R .... 5!/(3!2!) = 10
    4Y 1R .... 5!/(4!1!) = 5
    5Y OR .... 5!/(5!0!) = 1

    total number of ways is 32

    This is not a probability question, but rather based on the little formula
    for the number of ways that you can arrange p things, q alike of one kind, and r alike of another kind, which is
    p!/(q!r!)

    2) the number of ways you can choose no yellow chips is 1, namely RRRRR


    Had you asked "what is the probability of choosing no yellow chip in choosing any 5 chips from the above that would be

    1/( 14C5 ) = 1/2002

    1. 👍 0
    2. 👎 0
    posted by Reiny
  2. Correction:
    I said at the end
    "Had you asked "what is the probability of choosing no yellow chip in choosing any 5 chips from the above that would be

    1/( 14C5 ) = 1/2002 "

    that should have been 1/32

    1. 👍 0
    2. 👎 0
    posted by Reiny

Respond to this Question

First Name

Your Response

Similar Questions

  1. college math

    a bag contains 7 red chips and 9 blue chips. Two chips are selected randomly from the bag without replacement. What is the probability that the two chips are the same color? If someone could just point me in the right direction

    asked by Lauren on November 23, 2009
  2. Elementary math College

    A bag contains 7 red chips and 9 blue chips. Two chips are selected randomly without replacement from the bag. What is the probability that the two chips are the same color?

    asked by Anna on March 30, 2010
  3. PROBABILITY MATH

    A bag contains 10 red chips and 12 blue chips. Two chips are selected randomly without replacement from the bag. What is the probability that the two chips are the same color? Round your answer to 3 decimal places.. Help me find

    asked by HM on November 9, 2011
  4. math/probability

    A bag contains 7 red chips and 10 blue chips. Two chips are selected randomly without replacement from the bag. What is the probability that both chips are red?

    asked by KiKi on January 15, 2010
  5. MATH Prob.

    a bag contains 7 red chips and 10 blue chips. Two chips are selected randomly without replacement from the bag. what is the probability that both chips are red??

    asked by Twg on August 8, 2009
  6. Math

    20. A bag contains 7 red chips and 10 blue chips. Two chips are selected randomly without replacement from the bag. What is the probability that both chips are red

    asked by for Ms. Sue on January 15, 2010
  7. algebra

    a bag contains 4 red chips, 2 blue chips and 5 green chips. A chip is randomly removed from the bag, and then without replacing the first chip, a second chip is removed. What is the probability that both of the chips selected from

    asked by veronica on May 3, 2011
  8. probability

    A bag contains 3 red chips, 2 blue chips, and 1 white chip. If 2 chips are chosen from the bag (without replaceent), determine the probability that they are of different colors.

    asked by Ryan! on February 28, 2010
  9. PRE CAL. JOURNAL

    A BAG CONTAINS 3 RED CHIPS, 2 BLUE CHIPS AND 1 WHITE CHIP. IF 2 CHIPS ARE CHOSEN FROM THE BAG WITHOUT REPLACEMENT DETERMINE THE PROBABILITY THAT THEY ARE OF DIFFERENT COLORS

    asked by RAMATU on March 15, 2010
  10. Math Probabilities

    A bag contains 9 red chips and 12 blue chips. Two chips are selected randomly without replacement from the bag. What is the probability that the two chips are the same color? That would be the probability of two reds PLUS the

    asked by J on March 6, 2007

More Similar Questions