Central Measures

What does the mean represent in a set of numbers?

• the middle number
• the average number
• the number the appears most often
• the highest number

What does the median represent in a set of numbers?

• whatever number is in the middle of the list, regardless of the value of the numbers
• the number that represents the middle value in the set of numbers
• the number that appears most often
• the average number

What does the mode represent in a set of numbers?

• the middle number
• the average number
• the number the appears most often
• the highest number

How do you find the median of the set of numbers that are not listed in order, like 1, 2, 4, 3, 5, 3,6, 7, 8?

• Pick the number you see in the middle.
• Start crossing out at each end until you come to a number in the middle.
• Rewrite the numbers in order from lowest to highest first, then find the number in the middle.
• Pick the number that appears most often.

If you take 5 quizzes and get scores of 95%, 95%, 80%, 85%, and 75%, how would you find your mean quiz score?

• Find the score that is in the middle.
• Add all the scores together and divide by the number of scores.
• Add 95 + 80 + 85 + 75 together and divide by 4.
• Identify the quiz score that appears most often.

What is the mode of 3, 3, 4, 5, 10?

• 3
• 4
• 5
• 10

Your basketball team plays 5 games.
Your team scores:
10 points in the first game,
3 points in the second game,
2 points in the third game,
5 points in the fourth game, and
0 points in the fifth game.
What was the mean number of points your team scored for all 5 games?

• 3 points
• 4 points
• 5 points
• 10 points

The table shows the result when three coins were tossed simultaneously 30 times. 
What is the mean? 

• 1
• 1.57
• 2.2
• 3

The table shows the result when three coins were tossed simultaneously 30 times. 
What is the median? 

• 1
• 1.57
• 2.2
• 3

The table shows the result when three coins were tossed simultaneously 30 times. 
What is the mode? 

• 1
• 1.57
• 2.2
• 3