A study of car accidents and drivers who use cell phones collects the following sample data. 
Calculate the chi-square statistic for this test of independence.
Definitions:
Brain Attack
Another term for a stroke, a medical condition where poor blood flow to the brain results in cell death, causing loss of muscle control, speech, or other functions.
Nonbarbiturate Sedative
A class of sedatives that induce sleep and reduce anxiety without the use of barbiturates, which have a different chemical structure.
Tylenol
A brand name for acetaminophen, a medication used to reduce pain and fever.
Tay-Sachs
A genetic disorder that destroys nerve cells in the brain and spinal cord, typically identified in infants and leading to significant health challenges.
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Q69: A study of car accidents and drivers
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