Summative Classwork

What is the range of the data?

What is the mean number of messages sent in this sample?

If the mean of this sample is 91, and the MAD is 5, which of these data points are within the MAD?

• 100

• 95

• 90

• 85

• 80

What is the mean for "Beginning of Year" ?

What is the mean for "End of Year" ?

(HINT: it has a decimal)

If the ratio of the difference of means to the MAD for both data sets is 5.0 ,
What does that tells us about the separation of distributions?

• The distributions are separated

• The distributions are close to each other

• The means are close to each other

• The distributions are the same for both data sets

Which grade of students has the highest range of data?

• 6th Grade students

• 8th Grade students

What is the mean for 6th Grade students?

(Rounded to the nearest tenth)

What is the mean for 8th Grade students?

(HINT: It's a whole number)

What does MAD stands for?

• Mean Absolute Deviation

• Mean Acrobatic Destiny

• Master of Absolute Distribution

• Magic Aerodynamic Deviation