200k views
5 votes
Kaylee has 1 red, 3 blue, 2 brown, 5 black, 1 purple, and 4 pink flip-flops in her closet. Assuming she always replaces them, what is the probability that she will choose a blue pair on Monday and a pink pair on Tuesday IF SHE WILL NOT REPEAT THE SHOES SHE WEARS? (In other words, there is no replacement).

1 Answer

3 votes

Final answer:

The probability that Kaylee will choose a blue pair of flip-flops on Monday and a pink pair on Tuesday, without replacement, is 1 out of 20.

Step-by-step explanation:

The subject of this question is probability, a topic within Mathematics, and it is typically covered at a high school level. To find the probability that Kaylee will choose a blue pair of flip-flops on Monday and a pink pair on Tuesday, we calculate the probabilities step by step, considering that she will not replace the pairs she wears.

Initially, Kaylee has 3 blue pairs of flip-flops out of a total of 16 pairs (1+3+2+5+1+4). The probability that she picks a blue pair on Monday is therefore 3 out of 16, or P(blue on Monday) = 3/16.

After picking a blue pair on Monday, Kaylee has 15 pairs remaining, including 4 pink pairs. The probability she picks a pink pair on Tuesday is 4 out of 15, since one pair (blue) has been removed and won't be replaced. The probability of picking a pink pair on Tuesday is P(pink on Tuesday) = 4/15.

To find the probability of both events happening in sequence, we multiply the individual probabilities: P(blue on Monday and pink on Tuesday) = P(blue on Monday) × P(pink on Tuesday) = (3/16) × (4/15) = 12 out of 240, which can be simplified to 1 out of 20.

User Zac West
by
7.3k points