Home > CC3 > Chapter Ch7 > Lesson 7.3.3 > Problem 7-111
Researchers have determined that teenagers’ memories are negatively affected by getting less than
Remembered all | |||
Yes | No | TOTAL | |
Less than | |||
At least | |||
TOTAL |
Make a conditional relative frequency table to determine if there is an association between hours of sleep and memory.
In order to make a conditional 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? | ||
Yes | No | |
Less than | ||
At least |