vickyq7796 vickyq7796

10-10-2018
Mathematics

contestada

A bag of marbles contains 7 red, 5 blue, 4 red, and 2 yellow marbles. Jon selects a marble, replaces it, then selects another marble. What is the probability that Jon selects a red marble and then a yellow marble?

Question 2 options:

about 0.778 or 77.8%

0.5 or 50%

about 0.043 or 4.3%

0.25 or 25%

Respuesta :

konrad509 konrad509

10-10-2018

[tex]|\Omega|=18^2=324\\|A|=7\cdot2=14\\\\P(A)=\dfrac{14}{324}=\dfrac{7}{162}\approx0.043(=4.3\%)[/tex]

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