3rd Nine Weeks Exam Review

What do you do if there are two numbers tied in the middle when you are finding the median?

• Add them together.

• Add the two numbers in the middle & then divide by two.

• They are both the median

• Put a .5 on the end of the first number.

How do you find the range?

• Add. Count. Divide.

• biggest - smallest

• the middle number

• biggest + smallest

What is the mean?

4, 5, 6, 7, 3, 4, 10, 1

Find the median of these numbers:

2, 4, 7, 5, 3, 5

• 6

• 5

• 4.5

• 2

Find the median, mean and range: 

3, 5, 7, 9, 14, 3, 8

• median = 7  

  mean = 7

  range = 11

• median = 9

  mean = 7

  range = 49

• median = 9

  mean = 7

  range = 11

Find the interquartile range of the number list:

2, 6, 2, 0, 8, 1, 5

What is the median?

What is the interquartile range (IQR)?

Russ compared the heights of two basketball teams. He recorded the data as shown.

Pick ALL the correct answers.

ALL - LIKE MORE THAN ONE.

• Team 2 is taller than Team 1

• At least half of team 2 is more than 70 inches tall.

• Each team has a player under 65 inches and a player above 75 inches

• Team 2 has more variability in its heights than Team 1.

This box plot represents how many students are in each class. Select ALL FALSE statements

• Half the classes are 16 students or smaller.

• More classes are under 24 students than over 24 students.

• The larger classes have less variability.

• The smallest class has 16 students.