Stem and leaf plot — purpose?
Displays ordered data using stems and leaves.
Stem — role?
Represents the leading digit(s) of data.
Leaf — role?
Represents the remaining digit(s) of data.
Histogram — data type?
Shows frequency of continuous data in intervals.
Class interval — function?
Groups data within a specified range.
Measures of center — include?
Mean, median, and mode.
Median — position?
Middle value in ordered data.
Mode — most?
Frequently occurring value.
Range — calculation?
Maximum minus minimum value.
Box plot — summarizes?
Data using five-number summary.
Probability — range?
Between 0 and 1.
Complement — definition?
Event that the original does not occur.
Mutually exclusive — events?
Cannot occur simultaneously.
Independent events —?
Outcome of one does not affect the other.
Indices — represent?
Repeated multiplication as powers.
Square number — definition?
Number that is a perfect square.
Hypotenuse — in a right triangle?
Longest side opposite the right angle.
Pythagoras’ theorem — formula?
a^2 + b^2 = c^2.
Interior angle — in polygons?
Angle inside the shape at each vertex.
Trigonometry — relates?
Angles to side ratios in right triangles.
Answer 20 questions on Fundamentals of Data and Geometry.
1. In a stem and leaf plot, what does the leaf represent?
2. Why are leaves usually written in increasing order within each stem row?
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