Cell phones and driving:

To determine whether using a cell phone while driving

increases the risk of an accident, a researcher examines accident reports to obtain data

about the number of accidents in which a driver was talking on a cell phone.

a.

Is this an experiment or an observational study? _____________________________

b.

What is the variable of the study? _____________________________

c.

Is the data Qualitative or Quantitative?

_____________________________

d.

Is the data Nominal or Ordinal?

_____________________________

e.

Is the data Discrete or continuous?

_____________________________

f.

Is there a control group? Is there a treatment group? _____________________________