Posted by **Frances** on Thursday, May 5, 2011 at 5:42pm.

Teresa put tiles marked with the letters of her name into a bag. The back of each tile is blank.

The tiles are shown below.

T

E

R

E

S

A

Without looking into the bag, Teresa will pick a tile.

a. What is the probability that Teresa will pick a tile with the letter T on it? Show or explain

how you got your answer.

b. What is the probability that Teresa will pick a tile with a vowel (A, E, I, O, U) on it?

Show or explain how you got your answer.

Suppose Teresa first picked a tile with a vowel on it. Now Teresa will pick a second tile.

• She will not put the first tile back into the bag.

• She will not look into the bag while picking the second tile.

c. What is the probability that Teresa will pick another tile with a vowel on it? Show or

explain how you got your answer.

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