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Is it important to keep the width of each class the same in a frequency distribution?
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How do you find the frequency and frequency density on a histogram when you are only given the class width?
To calculate the frequency density we will simply divide the frequency by the class width.
Does frequency density divided by class width equals frequency?
No.
What is the frequency in a frequency table?
The frequency in a frequency table is the number of occurrences within each class width. The total frequency is the sum of all frequency's within all the classes.
What is frequency density?
Frequency/Class width (In a histogram it is on the y-axis, and the frequency is the area of the bars) This GCSE Bitesize Revision link is really useful:- http://www.bbc.co.uk/schools/gcsebitesize/maths/data/representingdata3hirev3.shtml
IfA data set has values ranging from a low of 10 to a high of 50 What is wrong with using the class limits 10-20 21-31 32-42 43-53 for a frequency table with a class width 10 Why no use CW equals10?
The classes listed have a class width of 11.
What is the definition for class width?
Statistics: The distance between lower or upper limits of consecutive classes. Ex - The class width in the frequency distribution shown is 6 - 1= 5
How do you find the frequency and frequency density on a histogram when you are only given the class width?
To calculate the frequency density we will simply divide the frequency by the class width.
Does frequency density divided by class width equals frequency?
No.
How do you work out the frequency for a histogram?
Frequency Density multiplied by the class width
Why the width of frequency distribution is always an odd number?
It is not! It can be odd, even or a mix.
How do you work out frequency from a frequecny density histogram?
class width times frequency density gives you the frequency
What does the height of a bar in a histogram represent?
The frequency density. That is, the frequency divided by the class width.
How do you calculate the frequency density in a histogram?
Frequency density= Frequency/Class width So shut ur mouth whoever is reading this!
What is the frequency in a frequency table?
The frequency in a frequency table is the number of occurrences within each class width. The total frequency is the sum of all frequency's within all the classes.
How do you work out frequency density?
basically this is an exampleAGE (YEARS) FREQUENCY FREQUENCY DENSITYFD= Frequency DensityAge : 0
How do i determine the number of classes ie intervals estimate the frequency of the class with the least and greatest frequency and determine the class width on a histogram?
try sqrt(N) where N represents the number of observations you have...
What is the difference between bar and histogram?
Bars are for single values or classes with uniform width, and the height of each bar is the frequency. In a histogram, the classes are of different width and the heights are proportional to the frequency density. The frequency, itself, is given by the area of the "bar" above the class.
