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Mathematics 15 Online
OpenStudy (anonymous):

help please! :)

OpenStudy (anonymous):

@Vocaloid

OpenStudy (anonymous):

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? 1 over 625 1 over 180 1 over 150 1 over 125

OpenStudy (anonymous):

@Vocaloid

OpenStudy (anonymous):

@Mehek14

OpenStudy (anonymous):

Okay, 5 beads, 5 different colors.

OpenStudy (anonymous):

What's the probability of picking a red? @geny55

OpenStudy (anonymous):

@Vocaloid

OpenStudy (anonymous):

1 of 5

Vocaloid (vocaloid):

listen to amber

OpenStudy (anonymous):

what about green? @geny55

OpenStudy (anonymous):

1 of 5 as well

OpenStudy (anonymous):

ko

OpenStudy (anonymous):

another red is 1/5

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

so you do

OpenStudy (anonymous):

1/5 * 1/5 * 1/5

OpenStudy (anonymous):

0.008

OpenStudy (anonymous):

Multiply.. 1 5×5×5

OpenStudy (anonymous):

5 * 5 * 5 = ?

OpenStudy (anonymous):

125

OpenStudy (anonymous):

yes! so our answer is 1/125

OpenStudy (anonymous):

yay! thanks :)

OpenStudy (anonymous):

np! :)

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