+379 How do you use permutations/factorials for this problem? (nPr and nCr)
A student has to choose an elective class for the last semester of high school. Her counselor suggested 8 electives, 6 of which were dance classes.
If the student randomly chose to read about 4 of the electives, what is the probability that all of them are dance classes?
Write your answer as a decimal rounded to four decimal places.
