Univariate Statistics

What is the median of the data?

• 200
• 100
• 90
• 140

What percentage of the data is between 90 and 140?

• 25 %
• 50%
• 75%
• 100%

What percentage of the data is between 40 and 150?

• 25 %
• 50%
• 75%
• 100%

What is the minimum value (lower extreme) of this data set?

• 50
• 30
• 35
• 25

What percent of the data is between 30 and 35 on the number line?

• 25%
• 50%
• 75%
• 100%

What is the term for the median of the lower half of the data?

• Lower Quartile
• Upper Quartile
• Median
• Maximum

Describe the histogram:

• Left Skewed
• Normal/Symmetrical
• Right Skewed
• Uniform/Flat

If a number is added to a set that is bigger than the mean. How does this affect the mean?

• increases
• decreases
• stays the same

The shape of the data is skewed left.

• TRUE
• FALSE

Describe the shape of the data.

• Uniform
• Negatively Skewed
• Positively Skewed
• Symmetrical