Correlations
The size of the bag of popcorn and the price of the the popcorn bag.
What is positive correlation?
The horizontal axis.
What is the x axis? or What is the independent axis?
Is a line that best fits the data.
What is the line of best fit? Or What is a least squares line of best fit? Or What is a linear regression line?
The correlation coefficient of the following data to 2 decimal places:
(7,18) (6, 17) and (8, 21)
What is 0.96
The vertical axis.
What is the y-axis? or What is the dependent axis?
The formula used to find slope is this.
What is Rise over Run?
The gradient of the least squares line of best fit of the following data to 2 decimal places:
(7,18) (6, 17) and (8, 21)
What is 2?
A point that is far away from all other points on the graph
What is an outlier?
The y-intercept of the least squares line of best fit of the following data to 2 decimal places:
(7,18) (6, 17) and (8, 21)
What is 4.67?
Suzy is drawing a scatter plot, her data is as follows: (3, 67) (2, 70) (1, 72) (0, 74). What scale should you use on the x-axis?
What is go up by 1s?
Correlation that is not related?
What is spurious?
The slope of a line going through the points (0,0) and (1, 2).
What is 2?
After entering data into your calculator. How do you find the correlation coefficient?
What is Shift, 1, 5, 3, =
The relationship between the number of jellyfish in the ocean and the number of text messages you got last Friday.
What is no correlation?
Suzy is drawing a scatter plot, her data is as follows: (3, 20) (2, 15) (1, 10) (0, 5). What scale should you use on the y-axis?
What is increase by 5s?
All positive correlation is causal. True or false
What is False?
The slope of the line going through these points: (-4, -7) and (9, 17)?
What is 24/13?
How do you clear data already entered into your calculator?
What is Mode, 1:Comp
Or
Shift, 9(Clear), 3(All), = (Yes), AC