A farmer is using a random sample to predict the number of broken eggs in a shipment of 3,000 eggs. Using a calculator, the farmer generates the following random numbers. The numbers 1–250 represent broken eggs.
A middle school has 490 students. Mae surveys a random sample of 60 students and finds that 24 of them have pet dogs. How many students are likely to have pet dogs?
A radio DJ asks the first 10 listeners who call in if they liked the last song.
20 customers at a chicken restaurant are surveyed on their favorite food.
A polling organization numbers all registered voters, then generates 800 random integers. The polling organization interviews the 800 voters assigned those numbers.
Rebecca used an email poll to survey 100 students about how often they use the internet.
Each cell in the table represents the number of people who work in one 25-square-block section of the town of Middleton. The mayor uses a random sample to estimate the average number of workers per block.
a. The circled numbers represent the mayor’s random sample. What is the mean number of workers in this sample?
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