math

posted by .

Suppose that a natural number from 1 through through 11 inclusive is selected at random. What is the probability that the number selected is even if you know that it is prime?

  • math -

    0% Nothing even is prime, because all even numbers can be divided by 2.

  • math (correction) -

    2 is the only prime even number. Since it is only 1 of the 11 possibilities, the probability = 1/11

  • math -

    If you know that the number will be prime, than you only count the prime numbers; because there are 6 prime numbers in 1-11 and only one of those is even, the answer is 1/6.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. mat 157

    Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?
  2. mat 157

    Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?
  3. mat 157

    Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?
  4. mat 157

    Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?
  5. Math

    Each of the numbers 0 through 26 is written on a piece of paper and all of the pieces of paper are placed in a hat. One number is selected at random. Determine the probability that the number selected is even. Note: 0 is considered …
  6. geometry

    Each of the numbers 0 through 15 is written on a piece of paper and all of the pieces of paper are placed in a hat. One number is selected at random. determine the probability that the number selected is even. Note 0 is considered …
  7. Finite

    Assume that the box contains balls numbered from 1 through 28, and that 3 are selected. A random variable X is defined as 1 times the number of odd balls selected, plus 2 times the number of even. How many different values are possible …
  8. Math

    Suppose that a graphing calculator is programming to generate a random natural number between 1 and 10 inclusive . What is the probability that the number will be prime?
  9. Probability

    From set of 20 natural no.s 2 are selected. find probability that their sum is 1.odd 2.even 3.selected pair is twin prime
  10. Math

    A number is selected from 5 t0 14 inclusive.what is the probability that it is either an even number or a factor of 40

More Similar Questions