Statistics Unit Review

• 2

• 4

• 6

• 8

• 1.2

• 1.6

• 3.0

• 3.5

• median

• mean

• mode

• range

• 3.5

• 6.0

• 8.0

• 7.5

• 17.1

• 4.1

• 2.3

• 1.8

• Less than 1/2 the students spend 1-2 hours a night on homework.

• Less than 1/3 of the students spend 2-3 hours a night on homework.

• About 25% spend 1 hour a night on homework.

• About 25% spend 3 or more hours a night on homework.

• 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 of chicken.

• Less than 50% liked walking best.

• More than 1/4 of the people liked bicycling best.

• About 1/3 of the people liked swimming best.

• About 18% of the people liked running best.

• school basketball coaches

• his neighbors with collegiate flags

• people at the grocery store

• fans at a football game.

Which is a valid sample of middle school students?

• every tenth boy entering school

• every tenth person attending a football game

• every third person attending an after school activity

• every third person who enters each homeroom