Variability

Which is the correct data set for the dot plot?

• 1, 2, 3, 4, 5, 6, 7, 8, 9, 
• 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 7, 9
• 1, 2, 3, 4, 5, 7, 9

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Mrs. Rosenblatt's class has an average grade of 87. Later on she realizes she left out Joe's score. His grade was a 65. The new mean will ,....

• increase
• decrease
• stay the same

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the mean of this data set?
6, 7, 2, 1, 5, 2, 1, 6

• 24.75
• 3
• 3.7
• 3.8

Tags

CCSS.6.SP.B.5C

Which dot plot shows more variability? a or b?

• a
• b

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.4

CCSS.6.SP.B.5

Compare the dot plots. Which dot plot has the greatest variability? 

• Ms. Sanson's class
• Ms. Kwei's class
• They have equal variability

Tags

CCSS.6.SP.A.2

Which dot plot has the greatest variability?

• A
• B
• C
• D

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.4

CCSS.6.SP.B.5

Which math class has more variability in their latest test scores?

• Morning Class
• Afternoon Class

Tags

CCSS.6.SP.A.2

A gym teacher compares the points scored by three basketball teams in their last 11 games. The points scored by Team A are shown, and the scores of Team B and Team C are shown by the box plots.

1. 1. Which team has the Lowest Median Score? Team ​ (a)  

2. 2. Which team has the Largest Interquartile Range? Team ​ (b)  

3. 3. Which team has the Smallest Interquartile Range? Team ​ (c)  

• A
• C
• B

Answer explanation

MEDIAN (Middle Value)

Team A: 78

Team B: 86

Team C: 82

IQR (Lower to Upper Quartile)

Team A: 74 to 88 = 14

Team B: 78 to 90 = 12

Team C: 70 to 86 = 16