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- 1. Multiple Choice1 minute1 pt
Which summary statistics should be used to describe the given data?

the mean and standard deviation

the mean and IQR

the median and standard deviation

the median and IQR

- 2. Multiple Choice1 minute1 pt
Standard deviation is a measure of

spread

center

shape

outliers

- 3. Multiple Choice1 minute1 pt
Which best describes the shape of the histogram?

uniform

unimodal

bimodal

skewed right

- 4. Multiple Choice2 minutes1 pt
Which of the following are true about the IQR? Check all that apply.

IQR = Q3 - Q1

IQR = Q1 - Q3

The IQR is the middle 50% of a distribution

IQR stands for interquartile range

The IQR is the width of the box in a boxplot

- 5. Multiple Choice1 minute1 pt
Which of the numbers below is NOT part of a 5 number summary used to create a boxplot?

minimum

first quartile

mean

third quartile

maximum

- 6. Multiple Choice1 minute1 pt
How do you determine if a data value is an outlier? Check all that apply.

Q1 - 1.5IQR

Q1 + 1.5IQR

Q3 - 1.5IQR

Q3 + 1.5IQR

- 7. Multiple Choice1 minute1 pt
Which of the following measures is affected by addition/subtraction? Check all that apply.

mean

median

standard deviation

range

Q1

- 8. Multiple Choice1 minute1 pt
Which of the following measures is affected by multiplication/division? Check all that apply.

mean

median

standard deviation

range

Q1

- 9. Multiple Choice1 minute1 pt
Which of the following are things to discuss when describing a distribution (histogram, stemplot, boxplot, dotplot, etc.)? Check all that apply

Shape

Outliers

Center

Spread

- 10. Multiple Choice1 minute1 pt
Which of the following do you NOT use to describe a scatterplot?

Form

Direction

Spread

Unusual Features

Strength

- 11. Multiple Choice1 minute1 pt
What number describes the percent of the variation in the response variable that is explained by the explanatory variable.

correlation

residual

coefficient of determination

predicted value

- 12. Multiple Choice1 minute1 pt
What is a residual?

making predictions outside of the range of the data

the percent of the variation in y that is explained by x

a number that describes the strength of a linear relationship

the difference between the observed and predicted values

- 13. Multiple Choice1 minute1 pt
The ______________ of a variable tells what values that variable takes and how often it takes them

data

distribution

statistics

graph

- 14. Multiple Choice1 minute1 pt
When a distribution is skewed to the left, ...

the mean is less than the median

the mean is greater than the median

the median is less than the mean

the mean and median are approximately equal

- 15. Multiple Choice1 minute1 pt
The _________ is the midpoint of the data.

median

mean

mode

standard deviation

- 16. Multiple Choice1 minute1 pt
A ________ is a graphical display of the five number summary.

stemplot

histogram

dotplot

boxplot

- 17. Multiple Choice1 minute1 pt
Which of the following graphs is appropriate to display categorical data? Check all that apply.

histogram

pie chart

segmented bar chart

boxplot

stemplot

- Answer choicesTagsAnswer choicesTags
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