Outlier

Outliers

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Multiple Choice

A value that is much higher or much lower than the other values in a set of data.

• Outlier

• Mean

• Median

• Mode

Multiple Choice

Identify the outlier for the given data?

23, 34, 27, 7, 30, 26, 28, 31, 34

• 7

• 23

• 31

• 34

Multiple Select

What can an outlier affect? Check all that apply

• central tendency

• spread

• mean

• IQR

Multiple Choice

The salaries of the employees in a company are listed below:

$28,000 $45,000

$31,000 $42,000

$55,000 $72,000

$88,000 $53,000

If $88,000 was found to be an outlier, which salary would be the new maximum?

• $55,000

• $28,000

• $88,000

• $72,000

Multiple Choice

Describe the histogram:

• Skewed Left

• Symmetrical

• Skewed Right

• Uniform

Multiple Choice

Describe the histogram:

• Left Skewed and unimodal

• Left skewed and multimodal

• Right Skewed and unimodal

• Right skewed and bimodal

Multiple Choice

Describe the data distribution shape of the graph.

• Skewed right
• Skewed left
• Uniform
• Symmetrical

Multiple Choice

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

• SKEWED LEFT
• SKEWED RIGHT
• UNIFORM
• SYMMETRICAL

Multiple Choice

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

• SKEWED LEFT
• SKEWED RIGHT
• UNIFORM
• SYMMETRICAL

Multiple Choice

How many cities have temperatures between 70 degrees and 99 degrees?

• 44
• 34
• 26
• 62

Multiple Choice

How many vehicles get more than 24 miles per gallon?

• 50

• 30

• 1

• 36

Multiple Choice

Which group has a greater median shopping time?

• Group A

• Group B

• They're the same.

• You can't tell.

Multiple Choice

Which club has the smaller spread?

• Cruisers

• Car Hops

• Neither, they are the same

Fill in the Blanks

Multiple Choice

Correlation or Causation?

The number of times you come to tutoring and your test scores improving

• Correlation

• Causation

Multiple Choice

Describe the following correlation coefficient:

r = -0.89

• Strong positive 
• Weak positive 
• Strong negative 
• Weak negative 

Multiple Choice

Describe the relationship between the variables.

• Weak positive correlation
• Weak negative correlation
• Strong positive correlation
• Strong negative correlation

Multiple Choice

Estimate the correlation coefficient.

• r = -1

• r = -0.5

• r = 1

• r = 0.5

Multiple Choice

The following scatter plot shows Pamela's training as she prepares to run a 6 mile race at the end of the month. Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles?

• A. 50 min

• B. 80 min

• C. 45 min

• D. 60 min

Multiple Choice

Which type of regression model does the scatter plot appear to show?

• linear

• exponential

• quadratic

Multiple Choice

Choose the linear equation that best fit the data shown on the graph.

• $$y=-2x+1$$  

• $$y=2x+1$$  

• $$y=-\frac{1}{2}x+1$$  

• $$y=\frac{1}{2}x+1$$  

Multiple Choice

What is the line of best fit?

• y = x+2

• y = x+7

• y = 0.6x-0.2

• y = 0.6x+2.4