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Graphs
Graphs often collect a set of data in a group of people. There are many kinds of graphs: pie charts (circle charts), bar graphs, line graphs, data tables, pictographs, flow charts, histograms, etc.
2,316 Questions
The bar representing what probabilities on a histogram would be the highest?
In a histogram, the highest bar represents the mode of the dataset, indicating the value or range of values with the highest frequency of occurrence. This means that the corresponding probability of that specific range is greater than any other range in the dataset. Additionally, the height of the bar reflects the relative likelihood of the data points falling within that range compared to others.
How would you find the number of degrees in a pie chart to represent 39 students out of 60?
It is 360*39/60 = 234 degrees.
Not by itself. It is only the framework. But as soon as you mark up one point on it it becomes a graph.
What kind of data is best displayed on a pie chart?
Pie charts are best suited for displaying the breakdown of a total into its constituent parts.
How is a stacked bar different from other bar graph?
In a normal bar graph, each bar represents one value. In a stacked bar graph, each bar has a number of values, stacked on top of each other. So a bar can show how a total is broken down. So each bar could represent a year, with the amounts for each month indicated by different parts of that one bar.
Line graphs show the relationship between the change in one variable to the change in another. (change)
On a computer, a line graph shows lots of pixels.
What should a well constructed histogram reveal to you?
It should reveal the frequency density of the variable for the well-defined classes. From this, it should be easy to work out the exact frequency in each class.
How do you work out a peace of pie on pie chart?
A sector or piece (not peace!) representing x % of the total has an central angle of 3.6*x degrees.
Why don't you connect the dots on the line graph?
This question cannot be answered in a sensible way because it is based on a misunderstanding. The dots in a line graph ARE connected. That is what a line graph is. If they are not connected then it is a scatter graph.
What does (00) mean in a graph?
On the Cartesian plane it is at point of origin whose coordinate is (0, 0)
How did a pictograph differ from an ideograph?
A pictograph is a visual translation of an object and Abstract ideas cannot have pictographs since they can't be visually translated. They are given a visual form by giving an 'idea' or an example of what they mean. For example the idea of barging in or to dash in can be represented by showing a horse running through a door. The character for 'to rush in ' is therefore 闖 or 闯. This is an ideogram.
How would you know that the boundary line is enclosed in a graph?
The boundary line is solid. If not it will be a dashed line.
How would you calculate the angle to show twenty percent on a circle graph?
Multiply the percentage by 3.6
What is the range of distribution in a bar graph?
The height of the highest bar minus the height of the lowest bar.
What does a box plot tell you vs a histogram?
A box plot summarises data in five items of information:
the minimum, lower quartile, median, upper quartile and maximum.
The histogram gives the probability density for each group of values.
There are a few good things about graphs. Graphs help gather data making it easier for people to short things out.
What would a graph about masses and volumes represent?
A graph about masses and volumes would represent density.
