A club has 750 members. In a random sample of 50 members, 18 chose soccer as their favorite sport. About how many of the 750 members would choose soccer?

A store serves 1,200 shoppers a day. In a random sample of 40 shoppers, 14 paid with cash. Estimate how many of the 1,200 shoppers paid with cash.

A town has 500 residents. A random sample of 25 residents found 9 who recycle glass. What is the best estimate of the number of the 500 residents who recycle glass?

Of 2,000 registered voters, a random sample of 80 was taken, and 28 of them supported a new library. About how many of the 2,000 voters support the new library?

A classroom library holds 450 books. A random sample of 30 books contained 12 nonfiction books. About how many of the 450 books are nonfiction?

A factory makes 5,000 bulbs in a day. An inspector tests a random sample of 200 bulbs and finds 6 defective. Estimate the number of defective bulbs among the day's 5,000.

A principal wants to know how many of the school's 800 students would use a late bus. Which method gives a random sample of the students?

A council surveyed 200 people using the skate park on Saturday to estimate support for a new park among the town's 4,000 residents. What is the main problem with this sample?

Researchers chose 150 adults at random from a list of every adult in a city, and 60 of them favored a new park. Which conclusion does this sample support?

A teacher wants to estimate the mean homework time for the 600 students in her school. Which sampling method is random?

A factory fills 9,000 jars a day and will weigh 90 of them. Which testing plan gives a random sample of the day's jars?

To estimate how many of 1,000 cereal boxes hold a prize, a student ran 40 simulated trials. A prize came up in 26 of the trials. About how many boxes hold a prize?

A coach ran 25 simulated sets of three free throws; all three shots went in on 12 of the sets. Of 300 players, about how many would make all three shots?

A spinner simulation of 100 trials produced at least two matches in 18 trials. Which statement best describes what the simulation suggests about 500 customers playing the same game?

Marisol simulated a fairground game 80 times to model winning a prize. A prize was won in 28 of the 80 simulations. Of 400 players, about how many would win a prize?

A student used coin flips to simulate 100 families with three children. All three children were the same gender in 26 simulations. Of 400 such families, about how many have all three alike?

One student samples 10 counters at random from a large jar and finds 4 red. Another samples 100 and finds 32 red. Whose estimate is more likely close to the true share?

A club took five random samples of 20 members each and got a very different estimate each time. What should the club do to get a more reliable estimate of the whole membership?

Two students each take a random sample of 50 students from the same school. One finds 22 who walk to school and the other finds 26. What best explains the difference?

Which sample is most likely to give a close estimate of the share of a city's 40,000 adults who own a bicycle?