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Data & Statistics

Explore data and statistics with this comprehensive guide covering pictographs, line plots, bar graphs, ordered pairs, line graphs, and basic statistics such as median, mode, and range. Enhance your math vocabulary and understanding of essential terms.

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Data & Statistics

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  1. Data & Statistics Math Vocabulary

  2. Pictograph • Data – another word for information. • Pictograph – a graph that uses pictures or symbols to show data. • Key – tells the quantity (how much) the picture (symbol) is worth or represents.

  3. Line Plot • A line plot displays data along a number line. • Outlier – a number in a set of data that is VERY different from the rest of the numbers.

  4. Bar Graph • A bar graph uses bars to show data. • Scale – numbers that show the units used on a graph. • Interval – the pattern of the numbers used on a graph.

  5. Ordered Pairs • Ordered pair – a pair of numbers that that names a point on a coordinate grid. (8,4) • In the ordered pair (8,4) the 8 tells you to go OVER 8 spots on the horizontal (x) axis. • The 4 tells you to go UP 4 spots on the vertical (y) axis. • Remember – OVER and UP!

  6. Line Graphs • Line graphs – connects points to show how data (information) changes over time. • Trend – the increase or decrease in the data. • *Read a line graph from left to right. If the line goes up, you have an increase. If the line goes down, you have a decrease.

  7. Basic Statistics • Median – the middle number in a set of data after the data has been arranged from least to greatest. Example – 4, 5, 6, 8, 9 – 6 is the median! • Mode – the number or numbers that occur most often in the data. Example 5, 6, 6, 7– 6 is the mode! Remember MO – Most Often • Range – the difference (SUBTRACT) between the greatest and least number in the data. Example – 33, 55, 66, 88, 99. Subtract: 99-33 = 66. The range is 66!

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