EOC Review #4

Find the interquartile range of this data set.

3, 2, 11, 8, 9, 8, 7, 3, 5

• 3

• 8.3

• 5.5

• 6

The number of laps around a track for five runners are 14, 8, 7, 4, 11. Display the data using a box-and-whisker plot.

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• 
• 
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What is the best measure of center to use to compare the two data sets?

• Median

• Either the mean or the median

• Interquartile range

• Either the standard deviation or the interquartile range

A group of men and women were polled about whether they got to the gym regularly. The joint and marginal relative frequencies corresponding to the results are shown in the two-way table.

What is the value of x?

• 1

• 0.5

• 0.2

• 0.1

An economist graphs the average price of houses versus average household income in a town over a number of years.

Which correlation coefficient makes sense for this relationship?

• -0.94

• -0.15

• 0.15

• 0.94

You find a line of fit for a set of data and calculate that the correlation coefficient for the model is -0.34. Which statement best describes the fit of the model to the data?

• The correlation coefficient suggests a strong positive correlation, so this model is a good fit for the data.

• The correlation coefficient suggest a weak positive correlation, so this model is not a good fit for the data.

• The correlation coefficient suggests a weak negative correlation, so this model is not a good fit for the data.

• The correlation coefficient suggests a strong negative correlation, so this model is a good fit for the data.

Anya is studying a textbook. Each day, she works through a few pages of the book. She tracks how long it is taking her to work through the textbook, and finds that the equation y = 14x +2 approximates the total pages studied after any number of days. Which statement is true based on this equation?

• Anya studies approximately 2 pages each day.

• Anya studies approximately 7 pages each day.

• Anya studies approximately 14 pages each day.

• Anya studies approximately 12 pages each day.

Find the mean of the numbers below:

4, 9, 7, 10, 5

• 5

• 6

• 7

• 8

What is this dog's name?

• Lola

• Louise

• Lila

• Lainey

What is this dog's name?

• Maddie

• Mila

• Martie

• Macy