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Seven cards, each of a different color are shuffled and placed in a ro
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24 May 2021, 03:52
24 May 2021, 03:52
Expert Reply
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Question Stats:
58% (00:54) correct
41% (01:37) wrong based on 17 sessions
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Seven cards, each of a different color are shuffled and placed in a row. What is the probability that the blue card is placed at an end? Express your answer as a fraction.
Show: :: OA
2/7
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Re: Seven cards, each of a different color are shuffled and placed in a ro
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11 Nov 2021, 12:17
11 Nov 2021, 12:17
Carcass wrote:
Seven cards, each of a different color are shuffled and placed in a row. What is the probability that the blue card is placed at an end? Express your answer as a fraction.
Show: :: OA
2/7
There are 7 cards, P(blue card is first in the row) = 1/7, and P(blue card is last in the row) = 1/7.
So, P(blue card is the first OR the last in the row) = P(blue card is first in the row) + P(blue card is last in the row)
= 1/7 + 1/7
= 2/7
Answer: 2/7
General Discussion
Re: Seven cards, each of a different color are shuffled and placed in a ro
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24 May 2021, 23:54
24 May 2021, 23:54
solution plz
