TEKS.MATH.9-12.VI.B.4

Identify the outlier for the given data?
23, 34, 27, 7, 30, 26, 28, 31, 34

• 7
• 23
• 31
• 34

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TEKS.MATH.9-12.VI.B.4

Here is the dot plot of voter turnout (as a percentage of voting-age population) for the 50 states—plus the District of Columbia—in a recent presidential election. Which of the following best describes this distribution?

• The distribution of voter turnout is skewed slightly left, centered at about 62%, with a range of 24%.
• The distribution of voter turnout is roughly symmetric, centered at about 60%, with a range of 30%.
• The distribution of voter turnout is skewed slightly right, centered at about 62%, with a range of 24%.
• The distribution of voter turnout is bimodal, centered at about 60%, with a range of 30%.

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TEKS.MATH.9-12.VI.B.4

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase.

• As the temperature increases, the number of visitors increases.

• As the visitors increase, the temperature decreases.

• No correlation

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TEKS.MATH.9-12.VI.B.4

What type of correlation does this scatter plot show?

• positive

• negative

• no correlation

• nonlinear association

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TEKS.MATH.9-12.VI.B.4

TEKS.MATH.9-12.VI.C.3

The scatter plot shows the number coffee shops in different cities and the number of violent crimes. Which of the following is NOT true?

• A) As the number of coffee shops increase, violent crimes appears to increase.

• B) The line of best fit (regression line) shows a positive correlation

• C) The data has a positive correlation coefficient

• D) An increase in coffee shops causes an increase in violent crimes

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TEKS.MATH.9-12.VI.B.4

The following dot plot

• skewed left

• skewed right

• symmetrical

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TEKS.MATH.9-12.VI.B.4

What type of association does this scatter plot represent?

• positive linear association
• negative linear association
• no association
• nonlinear association

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TEKS.MATH.9-12.VI.B.4

Which best describes the form of this scatterplot?

• linear
• nonlinear
• scattered

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TEKS.MATH.9-12.VI.B.4

After performing analyses on a set of data, Mrs. Schoeneck examined the scatter plot of the residual values for each analysis. Which scatter plot indicated the best linear fit for the data?

• A
• B
• C

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TEKS.MATH.9-12.VI.B.4

Students in a science class investigated how the speed of changes with the air temperature outside. The data is shown in the scatterplot.

Based on the scatterplot, what is the best prediction of the speed of sound when the air temperate is 50 degrees C?

• 350 m/s

• 362 m/s

• 358 m/s

• 348 m/s

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TEKS.MATH.9-12.VI.B.4