Data About Us Practice

How many letters are in your name?

• statistical/numerical

• non-statistical/categorical

What is my favorite color popsicle?

• statistical/numerical

• non-statistical/categorical

How many books does each person in your class check out of the library each week?

• statistical/numerical

• non-statistical/categorical

How many X-box games do members of our class own?

• statistical/numerical

• non-statistical/categorical

Which shows a statistical/numerical question regarding a data set?

• What is the total rainfall for the year in every city of the world?

• What is the total number of hours in a day?

• What is the total number of oceans in the world?

• What is the total number of miles between the same two cities?

What is the mean?

• # happening the most
• the number in the middle
• biggest-smallest
• the average

What is the mode?

• # happening the most
• the average
• biggest - smallest
• the middle #

What is the definition of the range?

• The average
• The number that occurs the most
• The middle number
• The difference of the largest and smallest numbers

A data set can have more than one median?

• True
• False

Calculate the mean.

2, 9, 10, 6, 8

• 8

• 4

• 7

• 22