Comparing Data Sets and Distributions

Given the following distributions, which has the smallest IQR?

• Red

• Purple

• Black

Given the following distributions, which has the highest median?

• Red

• Purple

• Black

Given the following distributions, which is symmetric?

• Red

• Purple

• Black

Given the following distributions, which is skewed to the left?

• Red

• Purple

• Black

Given the following distributions, which is skewed to the right?

• Red

• Purple

• Black

Here is a pie chart of how a randomly selected group of people described the cost of their health insurance. Which of the following bar charts is equivalent to the pie chart?

• 
• 
• 
• 

What is the shape of the distribution?

• The distribution is approximately uniform.

• The distribution is skewed to the right.

• The distribution is skewed to the left.

• The distribution is bimodal.

What shape is the distribution?

• The distribution is skewed to the right.

• The distribution is skewed to the left.

• The distribution is approximately symmetrical.

• The distribution is approximately uniform.

What is the shape of the distribution?

• The distribution is bimodal.

• The distribution is approximately uniform.

• The distribution is approximately symmetrical.

• The distribution is skewed.

When using IQR to find outliers, which formula will identify the lower limit?

• 1.5(IQR)

• Q1 + 1.5(IQR)

• Q1 - 1.5(IQR)

• Q3 + 1.5(IQR)