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A box has 5 beads of the same size, but all are different colors. Tina draws a bead randomly from the box, notes its color, and then puts the bead back in the box. She repeats this 3 times. What is the probability that Tina would pick a red bead on the first draw, then a green bead, and finally a red bead again?
A.1 /625
B.1/180
C.1/150
D.1/125

Respuesta :

musiclover10045

5 beads each a different color

 so every time she picks a bead she has a 1/5 probability of picking a certain color

she does it 3 times so you get:

1/5 x 1/5 x 1/5 = 1/125 probability of picking those colors

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