SAT Math 2.3 Statistics and Probability
|Logical Reasoning||Fundamental Counting Principle|
|Problem Solving and Data Analysis||Data inferences|
|Product Type||SAT Math|
|SAT Math||Statistics and Probability|
The easy way to solve one of these permutation problems is
to simply take the factorial of the number we are ordering.
In this case…it's 6.
We start with 6 spaces to place the students.
When we go to place the first student, we have 6 to choose from.
Then, for our next slot, there are only 5 left.
With each successive space, there is one less
choice, since another was used up in the previous slot.
Now, to find the possible permutations of students, we simply multiply the number of
choices for all slots together.
Which equals 720, that's 6 factorial.
So we get 720 possible outcomes. Our answer is just (C).