A coach recorded whether each player warmed up. Of 25 who warmed up, 14 finished, 11 came off hurt; of 50 who did not, 7 finished, 43 came off hurt. Is there an association, and how can you tell?

A school asked students how they travel in. Of 50 Grade 9 students, 35 walk, 15 take the bus; of 40 Grade 10 students, 8 walk, 32 take the bus. How many of the Grade 9 students walk?

A shop recorded how each customer paid. Of 20 weekday customers, 16 paid by card, 4 paid in cash; of 40 weekend customers, 8 paid by card, 32 paid in cash. How many of the weekday customers paid by card?

A coach recorded whether each player warmed up. Of 50 who warmed up, 35 finished, 15 came off hurt; of 40 who did not, 14 finished, 26 came off hurt. How many players altogether finished?

A beach survey recorded which visitors used sunscreen. Of 25 who used it, 19 went home unburned, 6 burned; of 20 who used none, 11 went home unburned, 9 burned. How many visitors were surveyed in all?

A library recorded which members joined its reading club. Of 25 who joined, 18 borrowed a book, 7 borrowed none; of 40 who did not, 12 borrowed a book, 28 borrowed none. How many members altogether borrowed a book?

A coach recorded whether each player warmed up. Of 20 who warmed up, 12 finished, 8 came off hurt; of 25 who did not, 10 finished, 15 came off hurt. What percent of the players who warmed up finished?

A study recorded which adults ate breakfast. Of 20 who ate it, 13 felt alert, 7 felt tired; of 40 who skipped it, 8 felt alert, 32 felt tired. What percent of the adults who ate it felt alert at noon?

A coach recorded whether each player warmed up. Of 25 who warmed up, 17 finished, 8 came off hurt; of 20 who did not, 6 finished, 14 came off hurt. How many of the players who skipped it came off injured?

A beach survey recorded which visitors used sunscreen. Of 50 who used it, 44 went home unburned, 6 burned; of 20 who used none, 5 went home unburned, 15 burned. What percent of the visitors who used it went home unburned?

A school asked students how they travel in. Of 40 Grade 9 students, 28 walk, 12 take the bus; of 50 Grade 10 students, 16 walk, 34 take the bus. How many students altogether walk?

A beach survey recorded which visitors used sunscreen. Of 25 who used it, 17 went home unburned, 8 burned; of 50 who used none, 9 went home unburned, 41 burned. What percent of the visitors who used it went home unburned?

A shop recorded how each customer paid. Of 25 weekday customers, 20 paid by card, 5 paid in cash; of 50 weekend customers, 22 paid by card, 28 paid in cash. What percent of the weekday customers paid by card?

A school asked students how they travel in. Of 40 Grade 9 students, 26 walk, 14 take the bus; of 50 Grade 10 students, 22 walk, 28 take the bus. How many students were surveyed in all?

A shop recorded how each customer paid. Of 50 weekday customers, 43 paid by card, 7 paid in cash; of 25 weekend customers, 14 paid by card, 11 paid in cash. Is there an association, and how can you tell?

A study recorded which adults ate breakfast. Of 25 who ate it, 19 felt alert, 6 felt tired; of 40 who skipped it, 10 felt alert, 30 felt tired. What percent of the adults who ate it felt alert at noon?

A school asked students how they travel in. Of 50 Grade 9 students, 24 walk, 26 take the bus; of 40 Grade 10 students, 4 walk, 36 take the bus. How many of the Grade 10 students take the bus?

A study recorded which adults ate breakfast. Of 50 who ate it, 28 felt alert, 22 felt tired; of 25 who skipped it, 5 felt alert, 20 felt tired. How many of the adults who ate it felt alert at noon?

A coach recorded whether each player warmed up. Of 25 who warmed up, 16 finished, 9 came off hurt; of 50 who did not, 15 finished, 35 came off hurt. How many of the players who skipped it came off injured?

A shop recorded how each customer paid. Of 20 weekday customers, 12 paid by card, 8 paid in cash; of 25 weekend customers, 9 paid by card, 16 paid in cash. Is there an association, and how can you tell?