Relative frequency in a two-way table: students in the band
Find the total for the group the question asks about, then write the part over that total as a fraction in lowest terms.
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A survey of students found: 23 play a sport and are in the band, 11 play a sport and are not in the band, 7 do not play a sport and are in the band, and 12 do not play a sport and are not in the band. What fraction of the students in the band play a sport? Write a fraction in lowest terms.
Answer: 23/30
A survey of students found: 34 play a sport and are in the band, 24 play a sport and are not in the band, 6 do not play a sport and are in the band, and 35 do not play a sport and are not in the band. What fraction of the students in the band play a sport? Write a fraction in lowest terms.
Answer: 17/20
A survey of students found: 38 play a sport and are in the band, 14 play a sport and are not in the band, 8 do not play a sport and are in the band, and 21 do not play a sport and are not in the band. What fraction of the students in the band play a sport? Write a fraction in lowest terms.
Answer: 19/23
Tip: Find the total for the group the question asks about, then write the part over that total as a fraction in lowest terms.
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