Respuesta :
Answer:
The lengths of time that his mom reads are typically shorter and have less variability than the lengths of time that his dad reads.
Step-by-step explanation:
The moms mean is less than the dads. The range is less too. Making the mom reading less and having less variability
2)The lengths of time that his mom reads are typically longer and have more variability than the lengths of time that his dad reads.