Dear Family,
In this chapter, your student will study different forms of statistical 
measures. One of the most common statistical measures is finding the mean 
of a set of data. Another word for mean is average. Think about ways you use 
the word average outside of the classroom. Consider the examples below 
before brainstorming your own ideas.
Have you ever said, "today is an average day"? What does that mean? You are 
probably comparing that particular day to a day that went really great or 
maybe to a day that did not turn out so good. So, what determines whether 
a day is good, average, or bad? Do you think your average day would be the 
same as a sibling or a parent? Spend some time thinking about the difference 
between a good, average, and bad day. 
How about temperatures? How does a meteorologist determine what the 
average high or low temperatures are for any given day? Do some research 
on the Internet as a family to discover how meteorologists keep track of 
average temperatures for your city.
Some other questions to consider:

How would a record high or low temperature affect the average 
temperature on a given day?

What other factors could affect an average temperature?
Now it is your turn! Think about other situations, activities, or events in 
which averages are used as a form of measurement or comparison. Make a 
list as a family and discuss how averages are used in each of the situations. 
Then consider what is being measured and how knowing the average is 
beneficial to you.
May you have above average luck