Choose a natural number between 1 and 100, inclusive. What is the probability that the number chosen is not a multiple of 4? (Enter the probability as a fraction.)

The largest number between 1 and 100 that could be devided by 4 is 100=4x25, which means there are 25 numbers in the range that are multiple of 4.

So the probability that the number chosen is not a multiple of 4 is (100-25)/100=75/100=0.75

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