Question

the mitch hawker poll ranked the top 10 steel roller coasters in 2011. a regression to predict duration from drop has R^2 = 15.2%
a) what are the variables and units in this regression
b) what units does the slope have
c) do you think the slope is positive or negative? explain

Answer 1

Answer on Question #55197 – Math – Statistics and Probability

The mitch hawker poll ranked the top 10 steel roller coasters in 2011. a regression to predict duration from drop has $R^2 = 15.2\%$.

a) what are the variables and units in this regression

b) what units does the slope have

c) do you think the slope is positive or negative? Explain

Solution

a) Dependent variable is $Y =$ "the duration of the ride" (in seconds). The independent variable is $X =$ "the initial drop" (in feet).

b) Seconds per feet.

c) It is positive. When the initial drop is higher, the ride is longer.

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