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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
What is the definition of a bar graph?
A bar graph is a visual display formed by lines or bars across a scaled grid. The relative lengths of the bars (horizontal or vertical) indicates the values represented.
How do you pick the intervals for a bar graph?
you can look at the problem...
you see how many spaces there are inbetween the most and least.
then you have to make sure it is the same amount like....
11-19
20-29
30-39
40-49
and on like that.
What is a pie chart slice shape called?
A slice, a segment or a sector.
A segment is the area of a circle between the chord and the arc. A "sector" is what you are looking for. See the links below.
What is the definition of a double line graph?
a graph that uses two lines connected by points to show value
Where On a line graph the dependent variable is plotted on what axis?
The dependent variable is usually plotted on the "y" or ordinal axis.
How could you plot than one responding variable on a line graph?
Plot different kinds of lines like a dotted or colored line.
Write a C program to make a vertical histogram?
/* Vertical Histogram of words in a Sentence */
#include<stdio.h>
#define MAXWL 20 /* Maximum length of a word */
#define MAXNO 25 /* Maximum No of words in a sentence */
int main(void)
{
int word[MAXNO];
int i,c,j,nc,nw;
for(i=0;i<MAXNO;++i)
word[i]=0;
nc = nw = 0;
while( (c=getchar()) != EOF)
{
++nc;
if( c ==' ' c =='
' c ==' ')
{
word[nw] = nc -1; /* -1 for excluding the space in the word length */
++nw;
nc = 0; /* resetting the word-length for the next word */
}
}
for( i = MAXWL; i >= 1; --i)
{
for(j=0;j <= nw;++j)
{
if( i <= word[j])
putchar('*');
else
putchar(' ');
}
putchar('
');
}
return 0;
}
Which type of data would be best represented in a line graph?
A line graph shows trends over a period of time. Data could include percentages of people who go to Disneyland over ten years, or how many people die of a particular disease each year.
How do you set out a line graph showing current vs voltage?
its like a bar graph but with little crosses and you join them up with lines
Would a histogram help you interpret data?
In many cases, histograms help interpretations. But you can probably think of cases where this is not true. Perhaps you have too few values. Perhaps your data has many flaws or errors in it. Sometimes, people will select the data that they want think supports their idea, and make histograms using only this data. See related link on histogram.
Pie graphs are good for showing a percent of something.
How do you work out the mean from a histogram?
take the values from the chart
and then add all the observations by total number of observation!
it is good that it is not a polygon!
Can you draw a pictograph showing the runs scored by the Deccan Chargers in ipl2009 finals?
You can go to the website: www.iplt20.com and check out the scores that are there
A bar graph differs from a line graph because?
the points on a bar graph are not connected to each other.
A good description of a line graph?
A graph that displays data by using points joined together by line segments.
Figure out the percentage that 90 degrees is of a whole circle, which is 360 degrees. 90 / 360 = 0.25, or 25%. 25% of 600 is 150 people who went abroad.
when a sets of data can be separated by 2 orders of variables, which are the independent & dependent variables.
How do you make a misleading pie chart?
You can do it in several ways. One is to pick your colors so that you emphasize certain parts of the pie. Brighter colors or ones that are darker than the neighbor colors stand out more. This can make the reader emphasize certain parts of the chart when they otherwise would not. Next, pie charts are often presented in 3 d relief. If you point the top of the chart away from the reader you can distort the perception.
