a. predict how many students practice every day. b. what is the sample size?

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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.

Jun 10th, 2015

Thank you for the opportunity to help you with your question!

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

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 10th, 2015

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