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How do you decide the width of class intervals in arithmetic mean?
Wiki User
∙ 8y ago
The width of class intervals is normally determined by the data and not whether you want to calculate the arithmetic mean.
For general population statistics you might use class widths of 6 or 10 years.
But if you were studying school children in the UK you might use the following, unequal bands:
Nursery-reception: 2 years
Years 1 and 2: 2 years
Years 3 to 6: 4 years
Years 7 to 9: 3 years (Lower secondary)
Years 10 to 11: 2 years (Upper secondary)
Years 12 to 13: 2 years (A levels).
Wiki User
∙ 8y ago
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What is identify the class width?
they come in all sizes
Is it length times width or width times length?
It doesn't matter, the results are the same. A very basic law of arithmetic is: a times b = b times a So, in regard to the calculatuion of area, it DOES NOT MATTER .
What is class width?
Class width, from statistics, is the difference between the two boundaries of a class. A class is an interval that includes all of the values in a (quantitative) data set that fall within two numbers, the lower and upper limits of the class. Finally, a class boundary is the midpoint of the upper limit of one class and the lower limit of the next class.
Why should the class width be an odd number?
It need not be, and often is not.
How do you work out frequency density?
basically this is an exampleAGE (YEARS) FREQUENCY FREQUENCY DENSITYFD= Frequency DensityAge : 0
What is the difference between class intervals and class width in statistics?
NONE
What is the class width of the class interval 4-15?
class width is a width width is a width nothing as class width is a width dont be confuse
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 are the class intervals if the class width is 10 from the data of 0 to 60?
If you are choosing class intervals in preparation for making a histogram, and if you know that the data all fall in the range from zero through 60 then you could choose the intervals: 0 through 10 inclusive more than 10 to 20 inclusive move than 20 to 30 inclusive ... more than 50 to 60 inclusive
A what uses bars to represent the frequency of data that have been organized in intervals?
If the intervals are of different width, then it is a histogram.
How do you find the interval in a frequency table?
First, you decide how many intervals you need. (Can be between 5-15). Then, you find the range (Max-Min=Range) Next you divide the range by the amount of intervals you wanted. The quotient is the width of your data Example: Intervals(Width=10 and Minimum=28)(When you add the width to the minimum, you should count the minimum too. Instead of 28+10=38, it would be 37 since the 28 count, and to check the answer you have to add ten going down) 28-37 38-47 48-57 58-67 68-77
What is the width in inches of a 44 inch circumference?
Circ. = pi x diam./width Thus, 44 = 3.14 x width and width = 44 / 3.14 You do the arithmetic.
Is the any Correlation between class width and student achievement?
There is no correlation between class width and student achievement. Class width is arbitrary (there are rules of thumb for class width, and it depends on the range of the data).
Why do you you want to choose intervals of equal width?
Sometimes you do, sometimes you don't. It depends on the context.
What is a special type of bar graph that displays the frequencies of data in given intervals of equal width?
Histogram
Could you please provide a shape of crawling boards?
Width - about the width of a ladder Length - however long you want cleats spaced at intervals of between 30 to 40 cm
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.
