Interstate 29 intersects many other highways as it crosses four states in Mid-America stretching from the southern end in Kansas City,MO, at I-35 to the northern end in Pembina, ND, at the Canadian border.

Consider the variable €œdistance between intersections.€
a. Find the mean distance between interchanges in Missouri.
b. Find the mean distance between interchanges in Iowa.
c. Find the mean distance between interchanges in North Dakota.
d. Find the mean distance between interchanges in South Dakota.
e. Find the mean distance between interchanges along U.S. I-29.
f. Find the mean of the four means found in answering parts a through d.
g. Compare the answers found in parts e and f. Did you expect them to be the same? Explain why they are different.

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State Missouri lowo South Dakota North Dakota U.S. Interstate 29 Miles 123 161 252 217 Number of Intersections 37 32 40