Types of Association
Predictions
Graphs
Random
Solving Equations
100
Positive, negative, or no correlation?
positive
100
Which trend line is drawn the best in order to make a prediction/estimate?
C
100
Every four years, soccer teams from around the world compete in the World Cup. The following list shows the number of goals scored in the championship game of each World Cup from 1930-2014:
Create a dot plot:
100
Lindsey conducts a survey and finds that as the first variable in her survey increases, the second variable increases.
What type of correlation is there between the two variables?
Positive
100
Solve for x:
3x + 5 = 20
x=5
200
Does the scatterplot have a correlation? Yes/No?
Yes
200
The scatter plot shows the association between minutes played and points scored. Approximately how many points would be scored if it's been 30 minutes? **Daily Double**
about 22
200
Use the following test scores to create a histogram:
Answers May Vary:
Ex:
200
Is the trend line positive or negative
positive
200
Solve for x:
2(x - 3) = 8
x=7
300
Linear, nonlinear, or no association?
nonlinear
300
The relationship between outdoor temperatures and ice cream sales. Predict sales, in dollars, when the temperature is 20 degrees C.
$450
300
Construct a box and whisker plot based on the data below:
300
A ____ ____ is a straight line that should lie as close as possible to the points of data in the scatter plot. It can be used for predictions.
Trend Line
300
Solve for x:
2x + 5 = 3x - 1
x=6
400
How are the association in these scatter plots DIFFERENT?
one is nonlinear and the other is no association
400
The amount of money earned for hours of babysitting .Predict the absurd amount earned, in dollars, for 7 hours of babysitting.
$11.50
400
Construct a scatter plot and draw the trend line:
Answers May Vary:
Ex:
400
How can you determine if the association on a scatter plot is linear or non-linear?
The trend will be straight for linear and curved for non-linear.
400
Solve for x:
x = 12(30) + 10
x=370
500
TWO answers required:
Positive, Negative, No Correlation? Linear/nonlinear/No Association?
Negative, linear
500
The amount of the water bill for various amounts of water used. Predict the amount of water one can use for a $26 water bill. **Daily Double**
about 8,000 gallons
500
Describe the association in terms of the variables: "As cholesterol consumption..., life expectancy..."
As cholesterol consumption increases, life expectancy decreases.
500
Use the following frequency distribution to determine
the mean, median, mode and range:
Mean: 56.6
Median: 57
Mode:54
Range: 6
500
10(2x + 4) = -2(x - 9)
x=-1