Histogram Spread and Center

Describe the shape of the graph

• Unimodal and Right Skewed

• Unimodal and Symmetric

• Bimodal and Symmetric

• Unimodal and Left Skewed

What is the range of the data?

• 80

• 10

• 70

• 40

• 30

What interval size was used when creating this histogram?

• 5

• 10

• 11

• 9

How would you describe the shape of this histogram?

• relatively symmetric

• skewed right

• skewed left

• uniform

Describe the histogram:

• Left Skewed

• Normal/Symmetrical

• Right Skewed

• Uniform/Flat

The histogram shows the number of hours worked in the past week for a sample of 25 high school seniors.

Fill in the blank (with a number):

"The median # of hours worked would fall at the _______th data value.

The histogram shows the number of hours worked in the past week for a sample of 25 high school seniors.

"The median # of hours worked would fall between.....

• 15 and 20 hours

• 20 and 25 hours

• 25 and 30 hours

• 30 and 35 hours

• 35 and 40 hours

• The freshmen averaged 1 more coat collected than the sophomores.

• The freshmen averaged the same number of coats collected as the sophomores.

• The sophomores averaged 1 more coat collected than the freshmen

• The sophomores averaged 3 more coats collected than the freshmen.

Which of the following is represented by the histogram?

• Of the 20 riders represented in the graph, over 50% are 30 years of age or older.

• One fourth of the riders represented in the graph are younger than 40 years old.

• Half the riders represented in the graph are between the ages 10-29.

• Six percent of the riders represented in the graph are between the ages 10 and 19.

Compare the centers and spreads.

• Math has a higher median (center) and is less consistent (wider spread).

• Math has a higher median (center) and is more consistent (smaller spread).

• Math has a lower median (center) and is more consistent (smaller spread).

• Math has a lower median (center) and is less consistent (wider spread).