Kinds of Graphs
a common chart or graph that logs data with rectangular bars
bar graph
how you know what the graph is about
title
What is the first thing you need in order to begin a graph?
A question
What is an "appropriate" scale?
A scale that equal intervals (increase of numbers).
The numbers are spaced equally on the graph.
The intervals make sense for the data in the graph.
What do you call the axis of the graph that is horizontal (left to right)?
X axis
a graph or chart that uses small pictures or icons to represent data
pictograph
informs you of what the x and y axis represent
labels
Where do you get the responses?
People, records, stats
What happens to the numbers in a scale?
The numbers SKIP as the scale increases.
What do you call the axis of a graph that is vertical (up and down)?
Y axis
is a special table where data is split into first digits and last digits (ones)
stem-and-leaf plot
the numbers, amounts
scale
What do you call it when you ask people a question to gather data (information)?
A survey
How should the intervals (scale of numbers) of numbers increase?
Equally (2, 4, 6, 8,... or 5, 10, 15, 20,..)
What do you call the DIFFERENCE between the greatest number and the least number in a set of data?
Range
a graph used to display two sets of data on the same graph
double bar graph
the bars, pictures on the graph
data
What the graph needs to look like?
NEAT
Why do graphs have a scale?
Show the data collected. Show numbers.
What is the first thing you do with the numbers, in a set of data, when you are looking for the RANGE?
Put numbers in order from least to greatest?
a graph comparing two or more characteristics in bars of different colours on a graph
multiple bar graph
informs what colours represent (what the colours mean)
the key (legend)
Why is important to have a neat and complete graph?
It is important because it makes it easier for others to read and understand the graph.
If you were using a small grid and your data numbers were in the 100s, what would be an appropriate choice of intervals? (what would your scale increase by?)
10s, 25s, 50s, 100s
How do you know the total number of the results in a set of data (list of numbers)? For example, the number of people, the number of test scores, the number of medals, etc.
You count all of the numbers in the graph or set of data.