Researchers have determined that teenagers’ memories are negatively affected by getting less than
Make a conditional relative frequency table to determine if there is an association between hours of sleep and memory. Homework Help ✎
In order to make a relative frequency table, you must first decide which variable is independent and which is dependent.
Remembering depends on how many hours of sleep a student gets so the independent variable is hours of sleep.
The frequencies should be calculated based on row totals.
Remembered all 10 items?
Less than 7 hours sleep
7-9 hours sleep
At least 10 hours sleep