Predict from a random sample
Use the fraction found in the sample on the whole population.
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In a random sample of 40 students, 22 prefer pizza for lunch. The school has 320 students. About how many students in the school would you predict prefer pizza for lunch? (Write a number; it may be a decimal.)
Answer: 176
In a random sample of 100 students, 4 walk to school. The school has 1300 students. About how many students in the school would you predict walk to school? (Write a number; it may be a decimal.)
Answer: 52
In a random sample of 40 students, 7 own a bike. The school has 280 students. About how many students in the school would you predict own a bike? (Write a number; it may be a decimal.)
Answer: 49
Tip: Use the fraction found in the sample on the whole population.
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