Probability

posted by .

Two group of male students cost their past on a particular proposal.the result are as follows: Group infavour against A 128 32 B 96 48 <a> if a student in favour of proposal is selected for a post. What is the probability that he is from group A ? if a student is chosen at random, what is the probability that he is against proposal.

  • Probability -

    Nuts to this, it makes no sense.
    What does "cost their past" mean?

    If you mean
    group A in favor: 128
    group A opposed: 32
    group B in favor: 96
    group B opposed: 48

    Now if all those infavor (128+96), if one is selected, Pr(A)=128/(128+96)
    If a student is chosen at random,
    Pr(against)=totalagainst/total students
    = (32+48)/(128+32+96+48)

  • Probability -

    I am also confused by what "in favour against" means.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. English

    1. A group of students help the sick. 2. A group of students helps the sick. (What is the difference between the two sentence?
  2. economics

    The 31 members of the board of the Student S. Inc. are about to take a secret ballot whether to accept the merger proposal of Student G. Corp. Each member can vote to accept the proposal, reject the proposal or to abstain. For the …
  3. Economics

    There are two groups of individuals of equal size, each with a utility function given by U(M) = sq. root(M), where M = 100 is the initial wealth level for every individual. Each member of group 1 faces a loss of 36 with probability …
  4. Math

    Two group of male students cost their past on a particular proposal.the result are as follows: Group infavour against A 128 32 B 96 48 <a> if a student in favour of proposal is selected for a post. What is the probability that …
  5. Math

    Two group of male students cost their past on a particular proposal.the result are as follows: Group infavour against A 128 32 B 96 48 <a> if a student in favour of proposal is selected for a post. What is the probability that …
  6. statistics

    Two group of male students cost their past on a particular proposal.the result are as follows: Group infavour against A 128 32 B 96 48 <a> if a student in favour of proposal is selected for a post. What is the probability that …
  7. Probability

    1) A group of students were asked about their itunes collection. The probability that a student had downloaded the album by group X was 33%. The probability that a student downloaded the album by group Y was 41%. However, if you only …
  8. Statistics

    The father of a junior high school student wants to determine the most popular book among junior high students. Select the sample with the least potential bias. A. A randomly selected group of 10 book sellers B. A randomly selected …
  9. Statistics

    A group of freshmen and sophomore students was selected and each was asked whether they were a member of a student club. The following table was constructed: Student Club No Student Club Freshman 4 15 Sophomore 9 7 Find the probability …
  10. Statistics

    The father of a junior high school student wants to determine the most popular book among junior high students. Select the sample with the least potential bias. A. A randomly selected group of 10 book sellers B. A randomly selected …

More Similar Questions