math: not sure how to figure out

What are the odds against getting exactly two heads in three successive flips of a coin?

The odds for are: 2/3

but I do not know how to figure out the probability of odds against getting exactly two heads in three successive flips.

  1. 👍 0
  2. 👎 0
  3. 👁 52
asked by bwb
  1. "probability of odds" ? , no such thing

    odds and probability are closely related

    odds in favour of some event
    = prob(event will happen) : prob(event will not happen)

    so two heads in 3 flips could be
    HHT
    HTH
    THH, which would be 3 cases out of the 8
    prob of exactly two heads out of 3 = 3/5
    prob of NOT exactly two heads out of 3 = 5/8

    odds against exactly 2 heads out of 3 flips = 5:3

    1. 👍 0
    2. 👎 0
    posted by Reiny
  2. Suppose a coin is biased so that it has the probilities below for landing on heads or tails on a single toss of the coin.

    P(h)=0.5020 P(t)=0.4980

    If this coin is tossed twice find the probability P(hh)

    1. 👍 0
    2. 👎 0
    posted by help

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    What are the odds against getting three heads in three successive flips of a coin? Odds against A = (1 – 3/6)/ (3/6)= 3/5 = 3::5 Could someone check my answer and correct me if I need it please

    asked by Punkie on November 28, 2009
  2. Math

    What are the odds against getting all heads or all tails in three successive flips of a coin? I say it is 3:1, is this right?

    asked by Jenny on November 15, 2009
  3. Math

    What are the odds in favor of getting at most two heads in three successive flips of a coin? This problem has to be done in ratio not fraction. Can anyone help?

    asked by Jennifer on January 23, 2010
  4. Conditional Probability

    Please refer to the illustration at screenshotsfirefoxcom/jZoizoMJf8a3H0UZ/ds055uzetaobbcloudfrontnet to help answer the following question: Zeb's coin box contains 8 fair, standard coins (heads and tails) and 1 coin which has

    asked by unowen on February 26, 2018
  5. math

    What are the odds in favor of getting at least one head in three successive flips of a coin?

    asked by jess on September 6, 2009
  6. Math

    What are the odds in favor of getting at least one head in three successive flips of a coin?

    asked by Kate on November 29, 2009
  7. math

    What are the odds in favor of getting at least one head in three successive flips of a coin? would those be 2/3?

    asked by Rmz on January 17, 2010
  8. Math

    What are the odds in favor of getting at least one head in three successive flips of a coin?

    asked by Anonymous on April 13, 2010
  9. MATH Prob.

    What are the odds in favor of getting at least one head in three successive flips of a coin?

    asked by Twg on August 11, 2009
  10. math

    This is a confusing problem to me also, can someone please help me? What are the odds in favor of getting at least one head in three successive flips of a coin?

    asked by Aleah on October 9, 2009

More Similar Questions