Suppose we must choose 4 rooms out of the 100 rooms in a dormitory. We randomly choose one each out of rooms 1-25,26-50,51-75, and 75-100. This is an example of what? PLEASE HELP!!

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step-by-step explanation:

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: