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EastWind
1 month ago
14

Mariah has a spinner that has 10 equal sections, each containing a different number from 1 to 10. Mariah determines about how ma

ny 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) = StartFraction Number greater than 7 over Total number of sections EndFraction times number of spins = StartFraction 4 over 10 EndFraction (250) = 100.

What mistake did Mariah make, if any?
Mathematics
2 answers:
PIT_PIT [12.4K]1 month ago
8 0
She mistakenly included a 4 instead of a 3. There are only three numbers exceeding 7, which are 8, 9, and 10. Mariah likely included 7 in her count, which resulted in her calculation being off.
PIT_PIT [12.4K]1 month ago
3 0
Mariah opted for 4 instead of the correct count of 3. I struggled with a test question containing this scenario.
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