How are histograms and bar graphs different?
In a bar graph, the height of the bars is relative to the frequency.
In a histogram, the area of the bars is relative to the frequency. Because it deals with area, the label on the y-axis is "frequency density" rather than just "frequency"
All graphs need labels or data on both of the axis to be of use. So all graphs require a "key"
Which is more useful between bar graph and pictograph?
This is like the chicken and the egg question, which came first. Bar graphs make some information easier to understand, progressions. Pictographs make other information easier to understand, percentages
Is a scatter plot the same as a line graph?
A scatter plot is a plot of paired (x,y) data with a horizontal x axis and a vertical y-axis. (definition as given in Elementary Statistics by Triola). Textbooks may have different definitions. If one variable is considered an independent variable, then generally it is the x value. This is particularly important if there is a relationship between the two variables, in that knowing the x value helps predict the y value. A best fit line can be drawn through the points.
A line graph in general connects points on a graph. The x-axis may not be a numerical value or it may not be equal spaced increments. For example, suppose I did surveys in years 2001, 2002 and 2009, counting how many accidents there were in a particular intersection. A line graph would show three years, 2001, 2002 and 2009, as equal spaced intervals on the x-axis.
The above definition is consistent with plots made in Excel. I note that some textbooks may consider a line graph as any plot that contains lines connecting the data.
See related links. You can find many good examples of graphical displays of data on the internet.
What legendary pictographs are in wind waker?
Go to Lenzo and finish his sidequest. Then go up to him and talk to him. Select your pictobox. It will cost 50 rupees.
Advantages of histogram in mathematical term?
I'm not entirely sure what is meant by "mathematical term," but histograms (or bar charts) are frequently used in statistics as a visual representation of the distribution of values in a data set. The advantage is that histograms provide a quick visual check that the assumption of normality has been met. There are also statistical tests for normality, but the accuracy of these tests has been questioned. Histograms, on the other hand, allow you to quickly identify not only normality, but also particular patterns or outliers in the data that may be causing a non-normal distribution.
Does a pie chart illustrate trends?
Generally, pie charts do not indicate trends. Line, bar and column charts are better for trends. They are designed to show how something is split up, so it does not have that purpose, so the answer would normally be no.
However, a pie chart could indicate a trend if there was a pattern in the successive slices, like if each was getting larger and each represented a time period, like a month. A few pie charts shown together could also indicate a trend, by looking at how the same data changes from chart to chart.
When is it best to use a pie graph?
Pie graphs are used when a part of something total is represented in relation to the whole thing
In what way are line graphs similar to bar graphs?
They illustrate the relationship between two (or more) variables.
What is an example of an bar graph?
A bar graph looks like a lot of rods, one next to the other, each of different lengths. The length is determined by whatever it is that the graph is measuring. For example, if it's the number of people in a town whose height is between 4'0" and 4'6", and the number whose height is between 4'6" and 5'0", and between 5'0" and 5'6" and between 5'6" and 6'0", then there will be 4 bars in the bar graph, one for each height group.
Which of the cells depicted in the line graph in figure 8-8 are most likely cancerous?
The graph on figure 8-8 is not shown here so there really is not any way to know which one is correct. Without his information the answer is not able to be known.
I need a bar graph on which soap is better. Liquid or bar soap?
liquid soap is better because who wants to use someone old nasty bar soap with all of that sick sweat for other people not me
A pictograph is a picture or symbol that was a earlier written communication.
Data Tables are useful in science because data tables help you organize your observation and results. ME. Sophie. Got that right off of the book
When do you use a circle or pie graph?
A pie graph is a good tool for when you want to emphasize the relative proportions of the numbers you're comparing.
While it's not as accurate an indicator as a line graph or a bar graph would be, the eye can better distinguish the sizes of the wedges in relation to each other.
What should a well-constructed histogram reveal to you?
Whether or not the data are normally distributed and the Customer expectations.