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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

Why would you use a pie graph instead of a bar graph?

Pie graphs are better for percentages rather than a bar graph. Bar graphs are better for showing amounts.

Less than half

Also, pie tastes so much better than a bar. if u no what i mean

What type of data is best displayed in a pie chart?

time or how much of something there is ex. 50% milk and 50% water

What are the advantages of a histogram?

im not positive but a histogram shows a continuous data in a similar way to bar graphs but without the gap between the columns it gives info about differnt catergories depending on what event its talking about.

Where can a bar graph be used?

A bar graph can be used for a lot of things. That is why they teach it in school! It is used for a lot of things in the world, for example it could be used to compare the amount of money made by different companies or the amount of people with AIDS in different parts of Africa. It can not be used to show something over a period of time though. You would use a line graph for that!

How to get data of the cost of Petrol of last ten years and its Histogram?

Where to collect the data of Petrol of last 10 years and draw a histogram

Which graph would you use to show percentages?

A pie graph is best for using to show percentages.

What do bar graphs represent?

They represent a # of X and a # of Y.

These are the axis's...

-Posted by Anonymous 7th Grader

Can a Pie graph represent a probability?

Depends on the data, but normally it can. Suppose you have a bag of marbles. There are 100. 5 are purple, 20 are blue, 25 are green, and 50 are red. That means when you make a pie chart 5% will be purple, 20% blue, 25% green, and 50% red. So you can tell from the chart the probility of picking out any color if you take one random marble from the bag. This is an example but the principle is true to many other things.

Can a pie chart represent who will go 1st 2nd 3rd or 4th in sequence?

No, but it can represent the probability of such an outcome.

Why is a bar graph unsuitable when plotting temperature against rate of reaction?

The two variables are continuous and most likely well measured variables that have a relationship. Therefore, a bar charge which requires the grouping of data, either by rate of reaction or temperature would provide a less meaningful plot than a plot of the (x,y) points, also called a scatter plot. Regression could be use to identify the relationship.

Do bar graphs start at the number zero?

A bar graph's data doesn't always start with zero but the scale on the y axis should. If you are not going to start the scale with zero then you have to put a squiggly line at the bottom to show that you skipped this space.

Who first used the Pie Chart?

The inventor of the Pie Chart was not Florence Nightingale. The earliest known pie chart is generally credited to William Playfair's Statistical Breviary of 1801, where two such graphs are used according to WikiPedia

Would a line graph or bar graph be better for showing the number of birds of each color in a population?

a bar graph because the line graph shows something in a period of time. Also a bar graph would show the number of birds and the color of them at the time while a line graph would show only the number of birds and the time.

Kinds of bar graph?

bar graph,line graph and pie graph

How do you draw a line graph on a Microsoft Word?

You Go ON charts or something like that then hit new chart or something

How can a line graph help make predictions?

Well, this can be a bit tricky at times. Suppose if the pattern is increasing, most likely the date you will be predicting will be higher than the latest date. If it is decreasing, then most likely the date you will be predicting will be lower than the recent date.

What is the difference between a frequency histogram and a relative frequency histogram?

Both divide the data into discrete groups or intervals. The frequency histogram gives the number of times the data occur in the particular group or interval, while the relative frequency histogram gives the fraction of times the data occur in the particular group or interval.

What is A Bar-line?

A type of a bar lines which single line that divides the staff into measure