Addison Brennan

Mathematics

14 August, 16:06

In Hillcrest School, 36% of middle school students are in Grade 6, 31% are in grade 7, and 33% are in grade 8. If a middle school student is selected randomly, what is the probability that the student is either in grade 6 or in grade 7? A) 0.31 B) 0.33 C) 0.64 D) 0.67

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