Mariah has a spinner that has 10 equal sections, each containing a different number from 1 to 10. Mariah determines about how many times the spinner will land on a number that is greater than 7 in 250 spins, and her work is shown below.
P (number greater than 7) = Numbers greater than 7 / Total number of sections times number of spins = 4/10 (250) = 100
What mistake did Mariah make, if any?
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