Averages and Grouped Data

In a grouped data, in what class can the median be found?

• Mean class
• Median class
• Modal class

What is the cumulative frequency of the modal class in this distribution?

• 1
• 14
• 15
• 24

What is the cumulative frequency of the median class in this distribution?

• 14
• 15
• 24
• 9

Which formula contains no cf (cumulative frequency)?

• Mean of grouped data
• Median of grouped data
• Mode of grouped data

In the median formula, which cf value of this distribution should be used to compute the median?

• 1
• 15
• 24
• 37

What is the modal class of this distribution?

• 30-39
• 40-49
• 50-59

What is the class size of the grouped data ?

• 10

• 13

• 15

• 50

What is the Median class?

• 26-30

• 21-25

• 16-20

• 11-15

Determine the commulative frequency of the median class

• 7

• 13

• 10

• 25

What is the modal class?

• 16-20

• 26-30

• 21-25

• 31-35