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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
What is the purpose of a key in a bar graph?
It's so you can tell what the different coloured bars represent. A bit pointless though if there is only one data set.
What are the advantages to pie charts?
summarize large amount of data in visual form
is easily understood
Data can be easily compared
bimodal histogram is a histogram where there are two clear high points on the graph.
ex.) age of people at a preschool play group. There would be preschool age and adult age. Not many teenagers or elderly. Bimodal...the ages representing preschool and adult (parents?) would stand above the rest
How is a line graph similar to a bar graph?
they're similar because the both of them trend and trend means to increase or decrease
What is the advantage of using multiple lines in a line graph?
You can compare two different data sets on the same chart.
What are the steps in plotting a line graph?
There are seven steps which are:
1. Identify the variables
2. Determine the variable range
3. Determine the scale of the graph
4. Number and label each axis
5. Plot the data points
6. Draw the graph
7. Title the graph
a double line graph is a graph that is same as a line graph but there are two lines
Describe the kind of data that is best desplayed asa line graph?
the kind of data would be probably something with a percentage or a lot of high numbers that vary in location (:
What is the difference between a bar graph and a double bar graph?
a bar graph is just a graph but a double bar graph compares 2 things!
What can graphs reveal that data tables cannot?
graph can reveal patterns or trend that words and date tables cannot
-from derek
In carrying out a controlled experiment what does a data table help you do?
It helps you record your data. A data table provides an organized way to collect and record observations.
Where do you place the independent variable on a line graph?
The independent variable is typically placed on the x-axis.
How are data plotted on a line graph?
on a line graph, the independent variable is plotted on the horizontal x- axis, and the dependent variable is plotted on the vertical y- axis.
What is a bar graph best used for?
Bar graphs are used to display countable data that are grouped in categories.
What are the differences between a pie chart a line graph and a bar graph?
Pie charts are circles that usually show percentages
Line graphs are graphs that use lines to show increase/decrease in time
Bar graphs are used to show amounts of something♦
What is the difference between a bar graph line graph and a circle graph?
Circle graphs are in the shape of a circle and are better for ratios, and some percentages, however line graphs can be plotted which means that you would have the x and y axis labeled with the correct data then you would plot the correct line using a ruler if you were hand drawing it and connect each number with a dot
