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The diagram below shows the contents of a jar from which you select marbles at random.

a. What is the probability of selecting a red marble, replacing it, and then selecting a blue marble? Show your work.
b. What is the probability of selecting a red marble, setting it aside, and then selecting a blue marble? Show your work.
c. Are the answers to parts (a) and (b) the same? Why or why not?

The diagram below shows the contents of a jar from which you select marbles at random a What is the probability of selecting a red marble replacing it and then class=

Respuesta :

mich1700
a.
[tex] \frac{4}{13} \times \frac{8}{13} = \frac{32}{169} [/tex]
b.
[tex] \frac{4}{13} \times \frac{8}{12} = \frac{32}{156} = \frac{8}{39} [/tex]
c. no because on a you replace the marble and the denometers are the same and on b you put it aside which decreases the denometer by one

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