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

Describe the relationship between the variables.

• Strong positive correlation
• Weak positive correlation
• Strong negative correlation
• Weak negative correlation

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

A survey explored the relationship between gender and band class. Which is a reasonable conclusion?

• There are more band members than non-band members
• There are more boys in the class than girls
• There are more boys in band than not in band
• More than half of the bands members in the class are girls

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TEKS.MATH.9-12.VI.C

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

What axis does the explanatory variable go on?

• x-axis

• y-axis

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

Is r = -0.87 strong, moderate, or weak?

• strong

• moderate

• weak

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

According to the two-way table, a person who plays an instrument is most likely to:

• Not play an instrument
• Not play a team sport
• Play a team sport
• All of the above

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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.

• $r=.27$

• $r=-.862$

• $r=.934$

• $r=.54$

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

How do we reduce variability?

• Increase randomness.

• Increase sample size.

• Decrease randomness.

• Decrease sample size.

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

Do current bank interest rates allow your money to keep up with the rate of inflation?

• yes

• no

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

Describe a correlation with a coefficient of r=0.3

• Strong positive

• Weak positive

• Strong negative

• Weak negative

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

What type of association does this graph have?

• positive
• negative
• none
• all of the above

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