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Statistics and probability
Course: Statistics and probability > Unit 1
Lesson 1: Analyzing one categorical variable- Identifying individuals, variables and categorical variables in a data set
- Individuals, variables, and categorical & quantitative data
- Reading pictographs
- Read picture graphs (multi-step problems)
- Reading bar graphs
- Reading bar graphs: Harry Potter
- Creating a bar graph
- Create bar graphs
- Reading bar charts: comparing two sets of data
- Read bar graphs (2-step problems)
- Reading bar charts: putting it together with central tendency
- Reading pie graphs (circle graphs)
- Picture graphs (pictographs) review
- Bar graphs review
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Picture graphs (pictographs) review
Picture graphs are a fun way to display data. This article reviews how to create and read picture graphs (also called pictographs).
A picture graph (or pictograph) is similar to a bar graph but way more fun. Here's one that shows how many sheep each shepherd has:
This works well when we're dealing with small numbers, but what if shepherds had many more sheep?
We could make each sheep picture represent more than one sheep, like this:
In this picture graph, Diane has 4, times, 5, equals, 20 sheep, Girish has 5, times, 5, equals, 25 sheep, and Willy has just 5 sheep.
Want to learn more about pictographs? Check out this video.
Want to join the conversation?
Sir, what is the real life application of finding mean, median, mode, range?
(or) why we have to find mean, median, mode, range?(16 votes)
There are many applications of such things. As an adult, one must buy various items; at which point they may research how to obtain inexpensive yet high-quality goods. In many cases of doing research, ratings are involved. Ratings have a mean, a median, and a mode. Also, when researching variation in most anything, range is a factor along with mean, median, and mode.(26 votes)
Can the scale have decimal values? For instance can 1 hot dog equals 1.5 hot dogs?(8 votes)
yes , the scale can have any decimal values. However, you should reasonable scale so that the reading of your chart would be easy ;)(8 votes)
- what if there is 1,234,567,890,123,456,789,012,345,678,901,234,567,899 bugs and you need to graph them?(1 vote)
- A pictorial graph would not be good in this case(5 votes)
If all values are unique on a bar chart what will be the mode?(3 votes)
If all numbers occur only once, there is no mode.(1 vote)
Using Charts and Graphs in Social Studies
are being used in what form in percentage
10%
23%
44%
77%(3 votes)- With graphs like these, wouldn't it mean losing information if the data isn't exactly the value given. Like if I had 11 sheep, each sheep icon represents 5 sheep, and to represent my amount, 2 sheep were put.(1 vote)
That's very true. You kind of have to adjust the graph for the data given, e.g. in the case of 11, you could go with 1 sheep = 1 picture.
However, in some cases you could represent half the amount of sheep by slicing the picture in half, which is more visually distinguishable.
(E.g. 1 icon = 2 sheep -> 5 and 1/2 icons represent 11 sheep.)(1 vote)
- Each medical intern was asked to chart how many patients per day each day of the week. By the end of the week, they had a chart to show which days were busiest.(2 votes)
- are these used in data science projects....?(2 votes)
If there are, say, 8 units per picture, would you use an eighth of that picture to show one?(1 vote)- Yes, you could, but the person reading the graph would have to estimate what they see, unless the pictures are easily broken down.(2 votes)
