Asked Feb 20, 2020

a class of 20 students is lined up in a random order each day to walk to lunch. what is the probability that alex kobe maria and shantel would be lined up in that order somewhere in the line?


Expert Answer

Step 1

From the given information, there are 20 students.

The 20 students lined up in a random order each day to walk to lunch is 20!.

The number of ways for arranging Alex, kobe, maria and Shantel would be lined up in that order somewhere in the line in 17!*4!...

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