Boxplots
What is the line inside the box called?
Median
frequency
4, 2, 5, 7, 1, 9, 6, 3, 7, 2
Find the mean.
4.6
What's the correlation coefficient close to when the dots are very close together on the graph
1
The distance from the data point to the line of best fit is called
Residual
What numbers do the whiskers extend to?
Maximum and minimum
When majority of the data is on the left side, we call the graph...
Right-skew
4, 2, 5, 7, 1, 9, 6, 3, 7, 2
Find the mode.
2 and 7
What is the name of the line we draw between data points on a scatterplot?
Line of Best Fit, Regression Line, Prediction Line
If almost all of our data points fall below the line of best fit, then our line is called this
Overestimate
What are the names of the lines that create the outside part of the box?
quartiles or "Q1" and "Q3"
The highest number minus the smallest number is called this
Spread (range)
4, 2, 5, 7, 1, 9, 6, 3, 7, 2
Find the median.
4.5
Time spent studying versus test score will have what relationship?
strong, positive, linear correlation
How are the x and y axes of a residual plot marked?
Y-axis has both positive and negative values. X-axis includes the x values from the scatterplot.
Each divided section of the boxplot is equal to this percentage
25%
A data point that is much further than the other data points is called....
Outlier
Which of the three can be represented by x with a bar on top of it?
Mean
When the points on the scatterplot make a distinct curve shape, its better to use this for your graph of best fit
Nonlinear function (exponential or parabola)
These are indicators from a residual plot that your line of best fit was a good fit.
Random scattering of dots both above and below the x-axis.
3, 1, 5, 8, 2, 5, 6, 1, 9, 4
What is the first quartile (Q3)
2
How do you find the center of a histogram?
Look for peaks, tall bars, or find the mode
8, 3, 9, 2, 3, 5, 6, 1, 7, 4
Which number is the biggest, mean, median or mode?
Mean
Give an example of two things that would result in a scatterplot with a negative correlation.
Many possible answers
These are indicators from your residual plot that your line of best fit is not a good fit.
Obvious pattern or points only above or only below the x-axis.