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

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.C.2

What kind of correlation?

• Positive
• Negative
• No

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

The age of a kitten and its weight.

• positive association
• negative association
• no association

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

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.C.2

A group of people are surveyed about the number of books they read each month, and the results are graphed in the pie chart. If the sample accurately represents the 420,000 people in the city of Omaha, how many people in Omaha can we expect to read 3 or more books per month?

• 84,000

• 105,000

• 189,000

• 218,000

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

What type of correlation does this graph show?

• A) Positive

• B) negative

• C) none

• D) all of the above

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

The scatterplot shows the average number of hours each of 13 people spends at work every week and the average number of hours each of them spends on recreational activities every week. Based on the scatterplot, what is the best prediction of the average number of hours a person spends at work every week if that person spends an average of 10 hours on recreational activities each week?

• 33 h

• 85 h

• 50 h

• 65 h

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

Which of the following best describes a scatter plot that shows no relationship between the x-values and the y-values?

• As x-values increase, the points are higher on the graph.

• As x-values decrease, the points are higher on the graph.

• The points are scattered around the graph.

• The points form a horizontal line.

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

Given the following Scatter Plot, select the option that is most likely the r value.

• $r=-.1$

• $r=-.981$

• $r=.92$

• $r=.765$

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TEKS.MATH.9-12.VI.C

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

Find the correlation coefficient (3 sig fgis)

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