Data Set: The Highway Accident Data

The data comes from an unpublished master's paper by Carl Hoffstedt. They relate the

automobile accident rate, in accidents per million vehicle miles to several potential terms. The

two variables extracted from this data set are.

X= Speed Limit

Y= Accident Rate per million vehicle miles

X 55 60 60 65 70 55 55 55 50 50

Y 4.58 2.86 3.02 2.29 1.61 6.87 3.85 6.12 3.29 5.88

X 60 50 50 60 55 60 60 50 60 55

Y 4.2 4.61 4.8 3.85 2.69 1.99 2.01 4.22 2.76 2.55

Discuss the types and level of measurement of the variables in the data.