Variables
Outliers and Predictions
Correlations
Reading & Creating Scatterplots
Random
100
This variable goes on the x-axis.
What is the independent variable?
100
What is a weak correlation?
data plots are spread apart on a graph?
100
What type of correlation does this graph show?
What is positive?
100
What are two points on the line of best fit?
What is (16,300) and (22,500)
100
What does the M stand for in the equation y=mx+b
what is the slope
200
This variable is impacted by the other variable and is placed on the y-axis.
What is the dependent variable?
200
Which point is the outlier?( stands out on the graph)
What is approximately (30, 6000)?
200
What type of correlation is shown in the scatter plot?
What is negative?
200
What is the association of this graph? Will the slope be positive or negative?
This graph shows a negative association and a negative slope.
200
What does the b stand for in the equation y=mx+b
what is the Y intercept
300
If I am graphing the number of shots made and the hours of practice for a player, which would be the independent variable?
What is the number of hours of practice?
300
Based on the scatter plot how many CDs would be sold for 3 jars of jam?
What is about 15 CDs?
300
What type of correlation is shown? Write a sentence describing the impact or lack of impact that impulsiveness has on empathy.
What is no correlation? Impulsiveness has no impact on empathy.
300
How do you make predictions using a scatter plot?
1) Draw a line of best fit. 2) Determine the slope and y-intercept. 3) Write an equation and use it to make a prediction.
300
y = mx + b this equation is called
what is slope intercept form
400
On a graph showing the relationship between salary and years of experience which variable would be the dependent variable?
What is salary?
400
If a person is 45 years old, based on the scatter plot, what should they expect their income to be?
What is about 45,000.
400
Describe what a positive correlation means for data.
When one variable increases the other variable will also increase.
400
Describe the association of this data.
There is no linear association. no association the numbers are random
400
lines that cross or intersect are
what is perpendicular or intersecting
500
Write a sentence describing the relationship between the average daily temperature and the number of beach visitors.
The number of beach visitors increases as the average daily temperature increases.
500
what is a strong correlation.
data plots that are close together
500
what does it mean to have a strong no correlation graph .
the data spots are scattered all over the graph but are close together
500
Describe the association of this data.
There is no linear association. no association some people with less sleep scored just as high as people with more sleep
500
The slope of a parallel line is
the same