Graphs

Trends and influences

A broken scale is a symbol used when a scale on the graph starts at a big number. It can be used on the x and y axis. It looks like the number 3 but with straight lines so it is a zig-zag and is places ON the axis line eg if the scale on the y axis starts at 324, you would write zero then the broken scale ON the line then 324.

Yes.

It doesn't really matter -- it's more of an issue of preference.

google it or something

The earliest known pie chart is generally credited to William Playfair's Statistical Breviary of 1801, where two such graphs are used. This is according to WikiPedia.

A+ statistical comparison

easier to read

No but you do need a dataset or data range with which to to populate the graph.

the line on a line graph represents how things happen or improve over time. Like if we had several earthquakes in the past few weeks. The line will go up.

trends

A line graph shows information that grows (raises) over a certain time.... Example: Growth of a plant within a year (timelaps)

horizontal

Most of Florida's production comes in the form of livestock and crops. Some other exports include cotton cloth and coffee.

Usually, the basic graphing formula is (y=mx+b). The fraction represented by the letter "m" must equal "1" (that is, 2/2 or 7/7). This way, the line moves in a straight line across the graph.

A "break"

histogram has several merits. one is it is good graphical representation of scores for better understanding. it is basically used for comparing scores.

everything

Got it! It's beautiful.

a filled in circle/dot means "greater than or eaqual to/less than or equal to" (depending on which way the arrow is pointing. an empty cirlce means only "greater than/less than". the greater than/less than symbol with the line under it will indicate the filled in circle. the normal greater than/less than symbol willl indicate the hollow cirlce

im kinda guessing but i think its because sometimes there are certain charts you need to use when solving a problem :)= (math or any other thing or subject)=

A bar chart can show different things, e.g: it can show what sports female and males do, what gender likes what colour most etc.

A pie chart is mostly used to show the difference between many things on one subject; like the percentage of people who like different flavoured crisps etc.

X

multiple lines may become confusing

Before going to its advantages and dis advantages , I would like to tell you why line graph is used.

Basically line graph is one of the main tool of Problem Solving techniques.

Line graph is the graphical presentation of the collected data in order to understand , analyze, conclude the data in a most easiest way

Lets take the example of an organization,

Every Organization is constituted of various processes. All the processes are well defined in terms of time, productivity and quality. But are all the processes under control? To get this information , we plot the line graph.

The first step to plot the line graph is to gather the data first of the division/department/issue/ problem of which you want to see the current trend.

Take an another example of data collection

We take the data of a man whose temperature we recorded at different time

@Time 10.00 : Temp: 101 degree Celsius

@Time 11.00 : Temp: 104 degree Celsius

@Time 12.00 : Temp: 100 Degree Celsius

@Time 1.00 : Temp: 98 degree Celsius

and so on

Then Represent this data on the X-Y axis taking time ( always) on x axis and Temperature on Y axis

Advantages of Line Graph:

Since this graph is always represented with respect to time so the graph reader can analyse the status of the activity/Task/ Process/issue/problem/ temperature ( as defined above) @ different time variations. And there where we see the status is out of control ( i.e. at peak or at far bottom), this graph exhibits the need of improvement.

Time may be months, Days, dates, hours, seconds, minutes etc.

Disadvantage of line graph:

Graph only represents the trend. But it doesn't go to the root cause of the identified issue .

As in above example of the collected data of temperature at different time , only indicates the temperature. But doesn't tell how this temperature occurred, the graph doesn't represent.

See related links. Box or box and whiskers plot show the variability of results in terms of percentiles, usually the 25, 50 and 75% percentile , the minimum and maximum of the data set. It is useful in comparing experiments, when the scatter or dispersion of the results is important. Bar charts, as shown in the link, present data values as a series of bars, which can be vertical or horizontal. The x-axis is divided into discrete intervals. See related link or search the internet for many examples.