Graphs

This helps you to know how much data is being covered. Some bar graphs will show just a little information while others will be in millions.

Frequencies are arranged in as per the ascending/descending (ordered) intervals.

Yes.

See the many answers currently available. It equals the change in y divided by the corresponding change in x, as you go along any segment of the line.

I know two parts of making a bar graph is Title, and Labels.

It'd probably be a line graph, but out of those two, I'd say bar graph.

Yes, changing the vertical scale will affect how the graph looks. To see examples, go to one of the financial web sites on Google or Yahoo and pick a few stock charts. If you are looking at an intraday chart (activity that happened during one day), the price may vary a dollar or so, but may look to jump all over the place. This is because the scale may be set to start at $50 per share (minimum value of the vertical scale) up to $55 maximum. Change the scale from zero to $60 and you will see a graph that looks more like a smooth line (the changes won't look as dramatic or steep).

Another way to change the scale is to use a logarithmic scale (where each step represents 10 times the previous step). This is useful in graphs that represent exponential growth or decay. On a standard scale, the graph could look like a sharp increase, then leveling off. On a logarithmic scale, the same data plotted may look more like a straight line.

to help record your informantion

It is called the dependent variable

love

scaling a bar graph can be used for two reasons, to jump past a large group of numbers unused (say the bar graph goes from 1-1000 but none of the data starts below 500)

Scaling can be important to emphasize a difference in numbers too, suppose item a is at 700, item b is at 850, and item c is at 1000. if your bar graph jumps from 1 to 500 and then goes up in increments of 100, it can make 700 look like its far less than 850 or 1000. this is usually a business tactic done to impress board members when presenting lackluster numbers.

They can preserve individual data values.

when recording results over time

yu no, ther gud 4 stuf.

Each chart has its own purpose and is preferred in various situations.

Pie charts are useful when comparing percentages of a whole. Bar charts, on the other hand, are useful when comparing figures which are not necessarily parts of a whole.

Its a picture graph

linear (ex. y=x+1)

parabolic (ex. y=x**2)

hyperbolic

central tendency become more obvious

The columns become narrower, their heights become more accurate but possibly more variable. The chart contains more of the underlying detailed information.

No.

Use a pie chart when you're comparing many things with percents to show how each part fits into the whole.

A record.

A double bar graph is just like a regular bar graph but it has two bars per subject.

Like this:

To measure data in a pie chart first you need to work out how big the whole thing is. Then when you get a amount of votes subtract it and you will find you answer quite easily