Statistics Unit Review

Which three statements are true about this line plot?

• The distribution is symmetric.

• The distribution is skewed.

• The mean should be used to describe the center of the data distribution.

• The median should be used to describe the center of the data distribution.

• The spread of the data is 6.

When the mean and the median are the same or almost the same value, the distribution is said to be symmetric.

• True

• False

Which statement about the number of pets in each household is true?

• More than half the households have more than 3 pets.

• The IQR is 2.

• The household with 6 pets is an outlier for the set of data.

• The range of the data collected is 14.

Which statement best describes the shape of the data distributions?

• Graph 1 is skewed and Graph 2 is symmetrical.

• Graph 1 is symmetrical and Graph 2 is skewed.

• Graph 1 and Graph 2 are both symmetrical.

• Graph 1 and Graph 2 are both skewed.

Which statement about the data in the histogram is true?

• The distribution of the data is symmetrical, so the mean and the median are most likely the same value.

• The distribution of the data is symmetrical, so the mean and the median are most likely different values.

• The distribution of the data is skewed, so the mean and the median are most likely the same value.

• The distribution of the data is skewed, so the mean and the median are most likely different values.

Which type of statistical display would allow you to count the number of students with a math score of 75?

• histogram

• line plot

• box plot

• circle graph

What is the mode of the following data set:
1, 1, 1, 2, 5, 9

• 1

• 2

• 5

• 9

Which of the following is an example of a statistical question?

• What color shirt are you wearing?

• How many dogs do you have?

• What are the favorite ice cream flavors of CMS 6th graders?

• Is it a nice day outside?

What makes a question statistical?

• Population

• Measurability

• Variability

• All of the above

What is the MODE of a data set?

• The middle value

• The number that occurs most frequently

• The average

• The difference between the max and min values