TEKS.MATH.9-12.VI.C.2

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters
• 15 chapters
• 18 chapters
• 21 chapters

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TEKS.MATH.9-12.VI.C.2

Which sentence describes the relationship shown on this scatterplot?

• 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.C.2

Which box and whisker plot has the highest median?

• Top plot
• Bottom plot

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TEKS.MATH.9-12.VI.C.2

What type of correlation does this graph have?

• Negative

• no association

• positive

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TEKS.MATH.9-12.VI.C.2

How many 7th graders had an IQ score in the 81-90 range?

• 13

• 6.5

• 3

• 42

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TEKS.MATH.9-12.VI.C.2

The first metacarpal bone is located in the wrist. The scatterplot below shows the relationship between the length of the first metacarpal bone and height for 9 people. The line of best fit is also shown.

How many of the nine people have an actual height that differs by more than 3 centimeters from the height predicted by the line of best fit?

• 2

• 4

• 6

• 9

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TEKS.MATH.9-12.VI.C.2

Estimate the correlation coefficient for this scatterplot.

• A) r = 1.2

• B) r = 0.89

• C)r = 0

• D) r = -0.89

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TEKS.MATH.9-12.VI.C.2

About how many male math teachers were there in 2006?

• 15
• 30
• 35
• 45

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TEKS.MATH.9-12.VI.C.2

Which function best fits this data? USE SQUARE ROOT REGRESSION.

• 
• 
• 
• 

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TEKS.MATH.9-12.VII.C.2

TEKS.MATH.9-12.VI.C.2

The Jamison family kept a log of the distance they traveled during a trip, as represented by the graph below. During which interval was their average speed the greatest?

• the first hour to the second hour

• the second hour to the fourth hour

• the sixth hour to the eighth hour

• the eighth hour to the tenth hour

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TEKS.MATH.9-12.VI.C.2