7 sp 3

• About 10% of the students wake up at 6:00 a.m.

• More than 3/4 of the students wake up at 6:30 a.m. or 7:00 a.m.

• More than 2/5 of the students wake up at 7:00 a.m.

• Less than 10% of the students wake up at 7:30 a.m.

The drama club wants to estimate the number of students who will attend the school play. The president of the club asks 20 of her friends if they are going to the play. She learns that 13 of them plan to attend the play. What could the president do to make it more likely that her estimate will be closer to the actual number of students who attend the

play?

• ask 20 more of her friends if they are going to the play

• ask the last 20 students in the cafeteria line if they are going to the

  play

• ask every 20th student on a list of all the students in the school if

  they are going to the play

• ask the members of the drama club to each ask 20 of their friends if

  they are going to the play

• Mr. Holt received responses from 160 students

• 16% of the students preferred mint flavor

• 38% of the students preferred orange or lemon flavor

• More than 35% of the students preferred chocolate or pineapple flavor.

• More than half of the students preferred hot dogs or grilled cheese

• More than half of the students preferred pizza or grilled cheese.

• More than half of the students preferred hot dogs or chicken

• More than half of the students preferred pizza or chicken

A coach wants to know the favorite snack purchased at the concession stand during football games. Which is the best sample for the coach’s survey?

• students getting off the bus

• teachers at the school

• the football team players

• students entering the football stands

• Less than 5% of the students chose cranberry as their favorite.

• More than 50% of the students chose apple or orange as their

  favorite.

• Less than 1/3 of the students chose grape as their favorite.

• More than 1/2 of the students chose grape or cranberry as their

  favorite.