A study of car accidents and drivers who use cell phones collects the following sample data. 
Determine the expected frequencies of those who had accidents in the last year to use for the chi-square test of independence.
Definitions:
Brain Wave Pattern
The electrical activity in the brain as detected by electroencephalography (EEG), characterized by certain rhythms or frequencies.
Delta Wave
A type of brain wave that is associated with deep sleep and is characterized by its low frequency and high amplitude.
EEG Pattern
A graphical representation of the electrical activity of the brain recorded during an electroencephalogram.
Deep Sleep
The stage of sleep in which brain waves slow down and recovery processes increase, important for memory and recovery.
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