Algebra 1-A Chapter 2
Terms
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- What is the mean?
- The average. Add all numbers and divide by the amount of numbers there were.
- What is the median?
- The number in the middle, lined up from least to greatest.
- What is the mode?
- The number that appears most.
- What is the range?
- The largest number minus the smallest number.
- What is the most important thing about box-and-whisker plots?
- The median.
- What is the upper and lower extremes?
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Upper- Largest number in data
Lower- Smallest number in data - What is the upper and lower quartile?
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Upper- The middle of median to the upper extreme
Lower- The middle of median to the lower extreme - What is a histogram?
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Key Word: Intervals
Like a bar graph, but bars touch. - In a Stem-and-Leaf plot- which side is a decimal point on?
- Stem.
- Name 6 ways to graph data.
- Line graph, line plot, histogram, bar graph, box-and-whisker, and stem-and-leaf.