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What data display is most appropriate for comparing data grouped into equal intervals?
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What is continuous grouped data?
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.
Which type of graph is best suited for comparing the hours that two students work as babysitters each week?
A grouped bar chart or, if comparing over a very long period, a pair of lines.
Advantage and Disadvantage of group data?
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 does a set of numbers have no mode?
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.
Why are numbers grouped into three's?
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.
What type of data does a histogram use?
data that is grouped into equal intervals
What is continuous grouped data?
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.
What is a sentence for class interval?
class interval - one of several convenient intervals into which the values of the variate of a frequency distribution may be grouped.
How can you display your collection of cheap swords?
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.
Which type of graph is best suited for comparing the hours that two students work as babysitters each week?
A grouped bar chart or, if comparing over a very long period, a pair of lines.
Which graphic display shows the median and data spread about the median?
A frequency diagram or, for grouped data, an histogram.
What is a bar graph best used for?
Bar graphs are used to display countable data that are grouped in categories.
What is seed fill algorithm?
The cluster of pixels which are grouped together by filling up the bodies by the combination of colours for display.
What is a modal class interval when it comes to statistics?
When observations are grouped into class intervals, the interval that contains the most frequently occurring value is known as the modal class.
Advantage and Disadvantage of group data?
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.
What is the definition of 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.
Can a grouped of data be grouped?
Not sure what a "grouped of data" means!
