Review for the Quiz

Mean for Grouped Data

by: Elizabeth C. Borres

Open Ended

How do you find the midpoint?

• Add and divide the lower limit and the upper limit to find the midpoint.

• Multiply the frequency and the midpoint.

• Add the product of the frequency and the midpoint.

• Add the frequency as well.

• Divide the sum of the product of the frequency and the midpoint by the frequency.

Open Ended

What operation do we use for Sigma or Epsilon?

 $\Sigma$  

Multiple Select

What are the steps in solving for the mean (grouped data)?

• Find the midpoint.

• Multiply, Add, and Divide.

• Multiply the frequency and the classmark.

• Add the product of the frequency and the midpoint.

• Divide the $\Sigma$  fXm by the frequency

Poll

Do you have any question(s), clarification(s)?

• Type 1, if no question and you understand.

• Type 2 if you have question, unmute yourself or type your question(s) in a comment box.

Weighted Mean and Mean for Grouped Data

• Use your notes, powerpoint, videos, and other resources to answer the questions.

• You can do your work on paper or on docs.

• Take a photo and attach it if its on paper.

• Let's start.