Why are charts called pie charts and not pizza charts?
One view:
Because they just are. Pi is a Greek letter and most mathematics came from the Greeks.
Another view:
According to wikipedia, it is spelled the same as "pie" because it is named for its resemblance to a pie which has been sliced. The wikipedia goes on to suggest "The earliest known pie chart is generally credited to William Playfair's Statistical Breviary of 1801." The originator of the chart might not have been familiar with the Napoletana cuisine at that time he conceived of its name.
One more view:
Pi is an integral part of the circle. R=(pi)r2. A pie chart is a circle.
A pie chart only shows up to 100%, divided into portions.
The key
false
Can a pie graph be used to show trends?
it can but it would be hard it would be a lot easier to use a line graph
How can you rotate a 3-D pie chart?
After the pie chart has been created, select the chart and open the Chart menu. Pick the 3-D View option. In it you will find various ways of manipulating the pie chart, including rotating it.
What does a bar graph measure?
It measures things between different groups, for example, a sandwich is a things, but you can use a bar graph to measure different kinds of sandwiches.
Write a C program to draw a pie chart?
int main()
{
int gd = DETECT, gm;
int midx, midy;
initgraph(&gd, &gm, "C:\TC\BGI");
setcolor(MAGENTA);
rectangle(0,40,639,450);
settextstyle(SANS_SERIF_FONT,HORIZ_DIR,2);
setcolor(WHITE);
outtextxy(275,10,"Pie Chart");
midx = getmaxx()/2;
midy = getmaxy()/2;
setfillstyle(LINE_FILL,BLUE);
pieslice(midx, midy, 0, 75, 100);
outtextxy(midx+100, midy - 75, "20.83%");
setfillstyle(XHATCH_FILL,RED);
pieslice(midx, midy, 75, 225, 100);
outtextxy(midx-175, midy - 75, "41.67%");
setfillstyle(WIDE_DOT_FILL,GREEN);
pieslice(midx, midy, 225, 360, 100);
outtextxy(midx+75, midy + 75, "37.50%");
getch();
return 0;
}
Which of these explains how a bar graph differs from a line graph?
Instead of connecting points with a line, a bar graph uses bars to represent data.
How do you use a histogram in 6th grade math?
After you have your data, when you record it into the histogram, you make a graph just like a bar graph, only, this time the bars are touching! Does that make sense? Please tell me if i'm wrong!:)
When two line graphs are crossing what does it mean?
It means that the coordinates of the point of intersection satisfy the equations of both lines. In the case of simultaneous [linear] equations, these coordinates are the solution to the equations.
Why is a line graph better than a bar graph?
Technically, neither are better. However, if you are measuring time (example: stocks for a certain company for six months) then a line graph would be better.
Why present data with pie chart?
Because it shows how much each element of a whole unit takes up. So if you had totals for each of the 12 months of a year, like sales totals, a pie chart would show 12 slices, one for each month. You could then have an indication as to how much each month made up of the total sales for the year. You can get the pie chart to show the actual value of each slice of show the percentage each slice represents of the whole pie.
What is a scale on a line graph?
the scale would be how many units or numbers you go by each line in the line graph.
What is Name of slant on a line graph?
The name of the slant on a line graph is called the slope. The slope represents the rate of change between two points on the graph and is calculated by dividing the change in the y-coordinates by the change in the x-coordinates. A positive slope indicates an upward trend, while a negative slope indicates a downward trend.