### Question Description

Marissa is researching information about martial arts students. She found that 7 out of 12 martial artists practice everyday There are 144 martial arts students at a school.

## Explanation & Answer

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The Fraction of martial artists who practice daily = 7/12

So the number of students who practice every day is given by 7/12 x 144 = 84.

The sample size is 144.

Sample size refers to the number of individual pieces of data collected or considered in a survey