2. Ajar contains 11 green marbles, 6 red marbles, and 9 blue marbles. A marble is selected at random, not replaced, and then a second marble is selected. What is the probabilityselecting a red marble followed by a green marble? A 65/649B224/352C33/337D33/325

Respuesta :

In order to find the probability, start by finding the probability of selecting a red marble out of the jar,

[tex]\frac{6}{11+6+9}=\frac{6}{26}=\frac{3}{13}[/tex]

then, do the same for selecting a green marble, however, remember that the first marble was not replaced, meaning that at this point there are 5 red marbles in the jar,

[tex]\frac{11}{11+5+9}=\frac{11}{25}[/tex]

finally, multiply the probabilities,

[tex]\frac{3}{13}\times\frac{11}{25}=\frac{33}{325}[/tex]

Answer:

The probability of the event is 33/325.