Continuity for a point exists when the left and right sided limits match the function evaluated at that point. For a function to be continuous, the function must be continuous at every single point in an unbroken domain.
The leaves of a stem-and-leaf plot are the rightmost digits of each of the original data values.
The mean of a data set is the average of the data set. The mean is found by calculating the sum of the values in the data set and then dividing by the number of values in the data set.
The median of a data set is the middle value of an organized data set.
The mode of a data set is the value or values with greatest frequency in the data set.
The range of a data set is the difference between the smallest value and the greatest value in the data set.
A stem-and-leaf plot is a way of organizing data values from least to greatest using place value. Usually, the last digit of each data value becomes the "leaf" and the other digits become the "stem".
To truncate is to cut off a decimal number at a certain point without rounding.
Learn how to create, read, and interpret stem-and-leaf plots.