Hello guys! :)
Back in 1 trial again amongst me the handsome blogger. This fourth dimension I volition part nigh how to brand the frequency distribution information tabular array group. There are vi steps to brand tabular array frequency distribution of information group, that is every bit follows :
- The root pace nosotros surfey the information volition endure created tabular array frequency distribution.
- Determine the range.
- Specify the publish of classes for the tabular array interval.
- Determine the length of the interval class.
- Set the lower trammel of the root interval class.
- Observe how many equal numbers, inwards each shape together with write inwards the gibe column amongst the sign "|". And fill upwards inwards the publish of frequencies according to the publish of tally.
To endure to a greater extent than understanding, let's practise the vi steps into the next example:
Example :
Suppose in that place are information values for eighty students, amidst them are:
80 eighty lxx 68 ninety 92 eighty lxx 63 76
49 84 71 72 35 93 91 74 sixty 63
48 ninety 92 85 83 76 61 99 83 88
74 lxx 38 51 73 71 72 95 82 70
81 91 56 65 74 ninety 97 eighty sixty 66
98 93 81 93 43 72 91 59 67 8887 82 74 83 86 67 88 71 89 7982 78 73 86 68 75 81 77 63 75
Answer :
let's move the vi steps to a higher house !
1. The root pace nosotros surfey the information volition endure created tabular array frequency distribution.
The information stimulate got been surveyed when the work is made, together with hence the information are:
80 eighty lxx 68 ninety 92 eighty lxx 63 76
49 84 71 72 35 93 91 74 sixty 63
48 ninety 92 85 83 76 61 99 83 88
74 lxx 38 51 73 71 72 95 82 70
81 91 56 65 74 ninety 97 eighty sixty 66
98 93 81 93 43 72 91 59 67 8887 82 74 83 86 67 88 71 89 7982 78 73 86 68 75 81 77 63 75
2. Determine the range.
Range tin endure determined past times subtracting the largest information amongst the smallest data.
Range = the largest information - the smallest data
Range = 99 - 35
Range = 64
3. Specify the publish of classes for the tabular array interval
The publish of classes tin endure searched past times the formula:
The publish of classes = 1 + 3.3 log n, n is the amount of frequency data.
The publish of classes = 1 + 3.3 log 80
The publish of classes = 1 + (3.3) (1.9031)
The publish of classes = 7.2802
So nosotros tin do lists amongst the publish of classes 7 or 8
4. Determine the length of the interval class
The length of the shape interval tin endure searched by:
length of interval shape = Range / publish of classes
length of interval shape = 64 / 7
length of interval shape = 9.14
So the length of the shape nosotros tin stimulate got 9 or 10.
5. Set the lower trammel of the root interval class
The lower trammel of the root shape interval tin endure retrieved from the smallest information or information smaller than the smallest data. However, the deviation of less than the length of the shape together with the root shape should non stimulate got a frequency equal to zero.
So I stimulate got the lower trammel of the root interval is 31
6. Observe how many equal numbers, inwards each shape together with write inwards the gibe column amongst the sign "|". And fill upwards inwards the publish of frequencies according to the publish of tally.
Just this article which I tin part to you.
I apologize if in that place are incorrect give-and-take on this article
The destination of give-and-take wassalamualaikum wr. wb.
Reference
- Google.com