Data Spread and Center

The IQR is the

• max - min

• Interquartile Range

• measure of spread that pairs with the mean

• Q₃ - Q₁

Which distribution has a larger Interquartile Range?

Which distribution has the largest median?

Which distribution has the smallest IQR? What is the value of the IQR?

• C, IQR= 20

• B, IQR= 5

• A, IQR= 6

Distribution B is ______________

• symmetric

• skewed left

• skewed right

• uniform

The range is the difference between the maximum and minimum values.

• True

• False

• 13.6
• 2.2
• 15.8
• 68.2

• 136
• 150
• 156
• 153

• Kim's scores are more consistent.
• Caleb's scores are more consistent.
• Both scores have the same consistency!
• Not enough information is provided.

The number of text messages that Isaac received each day for a week is shown: 47, 49, 54, 50, 48, 47, 55
What is the mean and median

• Mean=49
  Median=54

• Mean=49 
  Median=50

• Mean=50 
  Median=54

• Mean=50
  Median=49