Ch7 Reading Guide Part 1

On p175, the scatterplot of roller coast height vs speed appears to have ____ association.

• strong

• weak

• moderate

• I'm not sure

On p175, the scatterplot of roller coast height vs speed appears to have ____ association.

• positive

• negative

• I'm not sure

On p175, the scatterplot of roller coast height vs speed appears to have ____ association.

• linear

• curved

• I'm not sure

The second scatterplot on p175 shows just the "thrill" ride roller coasters. There is one point that stands out from the rest. Read the text to learn which of these is the correct answer:

• the outlier is probably the point that is in the top right

• the outlier is probably the point that is below the rest of them

• I couldn't find the answer in the text

The second scatterplot on p175 (just the thrill rides) appers to have a _____ association

• linear

• curved

• I'm not sure

According to this web site (https://www.mathscareers.org.uk/what-is-mathematical-modelling/), mathematical modeling is the...

• process of describing a real world problem usually in the form of an equation or equations

• something you build with glue

• very beautiful mathematics

• I couldn't find the answer

On p176, the equation of a line is referred to as a...

• linear model

• statistic

• calculation

• a graph

In the Do the Math on p176, the slope of equation 8 is...

• 0.88

• -0.72

• I'm not sure

• none of these because there is no fraction

On p176, what are the coordinates of one point on the line in equation 4:

• (4,7)

• (7,4)

• 4/7

• (0,7)

What is a residual?

• the difference between the observed value and the predicted value

• the difference between the predicted value and the observed value

• I'm not sure