Correlations
The equation of a trend line for the x time in minutes and y volume in gallons of water level is y = -3x + 75. What does 75 represent in the context of the situation?
What is the level of water after 0 minutes?
A piece of data that doesn’t seem to fit with the rest of the data set
What is the outlier?
The fomula used to find slope is this.
What is y2-y1/x2-x1?
The equation of a trend line for the x time in minutes and y volume in gallons of water level is y = -3x + 75. What does -3 represent in the context of the situation?
What is the level of water going down 3 gallons every minute?
A graph that uses points to display the relationship between two different sets of data
What is a scatter plot?
The slope of the line going through these points: (-4, -7) and (9, 17)?
What is 24/13?
The equation y = 6x + 120 represents employee wages where x is the number of copiers sold and y is the wages in dollars. If an employee sells 45 copiers, what is the expected wage?
What is $390?
The y-values tend to decrease as the x-value increases
What is negative association?
Write an equation of the line between the points (2,20) and (3,30).
What is y = 10x?
The relationship betweent the number of jellyfish in the ocean and the number of text messages you got last Friday.
What is no association?
The equation y = 6x + 120 represents employee wages where x is the number of copiers sold and y is the wages in dollars. If an employee earns $610, what is the expected number of copiers sold to the nearest whole number?
What is 82 copiers?
A line on a scatter plot drawn near the points that approximates the association between the data sets
What is the trend line?
The Relative Frequency of females in this study.
What is about 56%?
Write an equation of the line between the points (6,20) and (2,120).
What is y=-25x+170?
The relationship of time and throwing a ball up in the air.
What is nonlinear association?
The water level of a tank is represented in a scatter plot. The gallons of water is y and time in minutes is x. A trend line has the points (5,46) and (20,10). Using the equation of the trend line, how many gallons will be left in the tank at 12 minutes to the nearest tenth?
What is 29.2 gallons?
This is a two-way frequency table with percentages.
What is a Relative Frequency Table?
What is the relative frequency of males that are smokers?
What is about 10%?
A trend line goes through the points (1, 50) and (10, 95). What is the x value of a point that has a y value of 75?
What is an x value of 6?