Histograms Observations

Using the histograms to the left, the data distribution has the greatest frequency of 1 pet is:

• Class a

• Class b

• Class c

• All classes are the same.

Using the Class A histogram above (in #4 and at the top of this page), what is the peak for Class A?

• Between 0 and 1

• Between 1 and 2

• Between 2 and 3

• Between 3 and 4

Which unit of measurement is used in the study shown on the histogram?

• time

• Length

• Meters

• Height

How many observations were made in the study shown on the graph?

• 15

• 43

• 35

• 10

How many students scored more than 50%?

• 20

• 50

• 40

• 30

How many employees have a salary less than $22,000?

• 50

• 350

• 0

• 10

How many students scored more than 50%?

• 20

• 50

• 40

• 30

The histogram shows the times taken by a group of students to complete a Maths test.

Estimate the number of students who took longer than 30 minutes to complete the test.

• 5

• 10

• 15

• 20

Observe the histogram and choose the frequency distribution that corresponds to it.

• 
• 

What is the peak of the histogram if the data set is: 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4?

• 1

• 2

• 3

• 4