math

Coin A is tossed three times and coin B is tossed two times. What is the probability that more heads are tossed using coin A than coin B?

THE ANSWER IS NOT 7/16

  1. 👍
  2. 👎
  3. 👁
  1. Just counting the heads tossed,
    P(3,2) = 1/8 * 1/4
    P(3,1) = 1/8 * 1/2
    P(3,0) = 1/8 * 1/4
    P(2,1) = 3/8 * 1/2
    P(2,0) = 3/8 * 1/4
    P(1,0) = 3/8 * 1/4
    P(A>B) = ∑P(A,B) = 1/2

    1. 👍
    2. 👎
  2. That is correct. Thanks.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    A coin is biased so that a head is twice as likely to occur as a tail. If the coin is tossed 3 times, what is the probability of getting 2 tails and 1 head? What do you mean by biased in probability?

  2. unt

    A coin is tossed 9 times. What is the probability of getting all heads? Express your answer as a simplified fraction or a decimal rounded to four decimal places.

  3. math - probability

    a) What is the probability of obtaining 2 Heads when a coin is tossed twice? b) What is the probability of obtaining 1 Head when a coin is tossed twice? Keep in mind, the coins are not tossed simultaneously.

  4. Math

    Seth tossed a fair coin five times and got five heads. The probability that the next toss will be a tail is

  1. pre calc

    A coin is tossed upward from a balcolny 370 ft high with an initial velocity of 16 ft/sec. during what interval of time? will the coin be at a height of atleast 50 ft (h= -16t^2 +vot + h0) is the answer 0>= t

  2. math

    In which scenario do you use geometric distribution to solve? -Find the number of times a tossed coin lands on tails in 10 trials. -Determine the number trials to do to have a tossed coin land on tails 8 times. -Determine the

  3. Prealgebra/probability

    A coin is tossed three times. Use a tree diagram to find the number of possible outcomes that could produce exactly two heads. I don't know how to write out a tree diagram on here, but I think this one is heads -> heads, tails ->

  4. statistics

    a coin is tossed 16 times. What is the standard deviation?

  1. Math

    A biased coin lands heads with probabilty 2/3. The coin is tossed 3 times a) Given that there was at least one head in the three tosses, what is the probability that there were at least two heads? b) use your answer in a) to find

  2. Gr 12 Data

    Sarah tosses 5 coins, one after the other. a) How many different outcomes are possible? b) Draw a tree diagram to illustrate the different possibilities. c) In how many ways will the first coin turn up heads and the last coin turn

  3. math/geometry pls help

    A coin of radius 1 cm is tossed onto a plane surface that has been tesselated by right triangles whose sides are 8 cm, 15 cm, and 17 cm long. What is the probability that the coin lands within one of the triangles?

  4. math

    A fair coin is tossed 10 times. What is the probability of getting exactly 6 heads?

You can view more similar questions or ask a new question.