shedoesntevengohere shedoesntevengohere

10-12-2021
Mathematics

contestada

scores on a test have a mean of 66 and Q3 is 80. The scores have a distribution that is approximately normal. Find the standard deviation. Round your answer to the nearest tenth.
A) 10.5
B) 20.9
C) 9.4
D) 18.7

Respuesta :

mariogonzalezwow09 mariogonzalezwow09

10-12-2021

The correct answer is B

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