Want this question answered?
In continuous grouped data the data is collected continuously and in groups. Data collected is in class intervals the actual data values are not visible.
A grouped bar chart or, if comparing over a very long period, a pair of lines.
Reasons for grouping:saves spaceeasier to look for patternscertain calculations may be performed that are more difficult on un-grouped dataProblems with grouping:may hide patterns if intervals are badly chosenopen-ended intervals can be confusing to interpret, for example; Amir earns > £60,000 annually, or Umair spends < £100 weekly.Information may be lost- if only grouped data is published then it may lead to problems in statistical analysis.
When data is grouped and each of the intervals or categories has the same relative frequency, then no mode can be calculated. This can happen when the dataset is very limited. If all numbers in a dataset are the same, then it is impossible to calculate a mode, no matter how the data is grouped. Sometimes the level of variation is so much less than our measurement capability that we can not detect variations in variables.
This is because in Western cultures, numbers above a thousand are grouped in 3s; the Greek prefices for the SI system are also grouped in powers of 10^3.
data that is grouped into equal intervals
In continuous grouped data the data is collected continuously and in groups. Data collected is in class intervals the actual data values are not visible.
class interval - one of several convenient intervals into which the values of the variate of a frequency distribution may be grouped.
You can display your collection of cheap swords in a large display case with a glass front. You can also display them by hanging them on your wall, either in various places around the room, or grouped together in one spot.
A grouped bar chart or, if comparing over a very long period, a pair of lines.
A frequency diagram or, for grouped data, an histogram.
Bar graphs are used to display countable data that are grouped in categories.
The cluster of pixels which are grouped together by filling up the bodies by the combination of colours for display.
When observations are grouped into class intervals, the interval that contains the most frequently occurring value is known as the modal class.
Reasons for grouping:saves spaceeasier to look for patternscertain calculations may be performed that are more difficult on un-grouped dataProblems with grouping:may hide patterns if intervals are badly chosenopen-ended intervals can be confusing to interpret, for example; Amir earns > £60,000 annually, or Umair spends < £100 weekly.Information may be lost- if only grouped data is published then it may lead to problems in statistical analysis.
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.
Not sure what a "grouped of data" means!