Shape and Center

What is the shape of the data?

• symmetrical

• skewed left

• skewed right

• uniform

Which measure of spread should be used to describe the distribution?

• standard deviation

• interquartile range

• range

• median

Which of the following best describes the shape of the distribution?

• SKEWED LEFT

• SKEWED RIGHT

• UNIFORM

• SYMMETRICAL

What is the interquartile range?

• 4

• 6

• 2

• 8

Which of the following best describes the shape of the distribution?

• SKEWED LEFT

• SKEWED RIGHT

• UNIFORM 

• SYMMETRICAL

What is the range of the data?

• 100

• 110

• 50

• 150

The histogram shows the birth weights of 100 new born babies.  How many babies weighed 8 pounds or more?

• 22

• 23

• 30

• 45

• only 2nd period is symmetric
• both plots are symmetric
• 5th period is bimodal
• 2nd period's center is higher than 5th period

• the spread of 5th period is greater than 2nd period
• the spread of 2nd period is greater than 5th period
• 5th period is skewed right

• 2nd period has a gap at 16
• 5th period has an outlier
• 5th period's center is higher than 2nd period
• 2nd period's spread is greater than 5th period's spread