qcl 14-v3 [bunking lectures]_[banasthaliuniversity]_[garimasrivastava]
Post on 05-Aug-2015
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PARETO DIAGRAM“Put your efforts where they will make most
difference”
It is one of the seven basic tools of quality
control.
It is diagram that comprises of a series of
bars arranged in descending order of height,
from left to right and a line graph.
The length of the bars represents the
frequency.
Pareto diagram are used to analyze a
problem and gives a easy way out for
analyzing which problem needs attention
first.
PARETO PRINCIPLE“Don’t just ‘WORK SMART’, work smart on
the right things”
It is also known as the 80-20 rule.
It states that in any set of things few
(20%) are vital and rest (80%) are trivial or
of little significance.
As shown in the figure, the principle
reminds us to focus on the 20% that
matters i.e.20% has more weightage than
80%.
PARETO CHART - REASONS FORBUNKING LECTURES
Bunking of lectures has become a major problem nowadays.
According to the survey done
The data is categorized under the following reasons:- Fun with friends
Not well
Sleeping late at night
Attending coaching classes
Insanely boring lectures
Cultural/sports events
approaching
Self study
Going out on a vacation
STEP 1:Putting the raw data in tabular form
S.NO. CATEGORY FREQUENCY
1. FUN WITH FRIENDS 50
2. NOT WELL 4
3. SLEEPING LATE AT NIGHT 114
4. ATTENDING COACHING CLASSES 20
5. INSANELY BORING LECTURES 75
6. CULTURAL/SPORTS EVENTS APPROACHING 12
7. SELF STUDY 15
8. GOING OUT ON A VACATION 10
STEP 2:Arranging the data in descending order
S.NO. CATEGORY FREQUENCY
1. SLEEPING LATE AT NIGHT 114
2. INSANELY BORING LECTURES 75
3. FUN WITH FRIENDS 50
4. ATTENDING COACHING CLASSES 20
5. SELF STUDY 15
6. CULTURAL/SPORTS EVENTS APPROACHING 12
7. GOING OUT ON A VACATION 10
8. NOT WELL 4
STEP 3:Calculate the percentage of each category
S.NO. CATEGORY FREQUENCY PERCENTAGE
1. SLEEPING LATE AT NIGHT 114 38%
2. INSANELY BORING LECTURES 75 25%
3. FUN WITH FRIENDS 50 16.7%
4. ATTENDING COACHING CLASSES 20 6.7%
5. SELF STUDY 15 5%
6. CULTURAL/SPORTS EVENTS APPROACHING 12 4%
7. GOING OUT ON A VACATION 10 3.3%
8. NOT WELL 4 1.3%
STEP 3:Calculate the cumulative percentage
S.NO. CATEGORY FREQUENCY PERCENTAGE CUMULATIVE PERCENTAGE
1. SLEEPING LATE AT NIGHT 114 38% 38%
2. INSANELY BORING LECTURES 75 25% 63%
3. FUN WITH FRIENDS 50 16.7% 79.7%
4. ATTENDING COACHING CLASSES 20 6.7% 86.4%
5. SELF STUDY 15 5% 91.4%
6. CULTURAL/SPORTS EVENTS APPROACHING 12 4% 95.4%
7. GOING OUT ON A VACATION 10 3.3% 98.7%
8. NOT WELL 4 1.3% 100%
SLEEPING LATE BORING LECTURES
FUN WITH FRIENDS
ATTENDING LECTURES
SELF STUDY CULTURAL/SPORTS EVENTS
VACATION NOT WELL0
20
40
60
80
100
120
0
20
40
60
80
100
120
REASONS FOR BUNKING LECTURESFR
EQU
ENCY
CUM
ULA
TIVE
FRE
QU
ENCY
80% LINEVITAL FEW
TRIVIAL MANY
STEP 3:PARETO CHART
CONTD.
From the above pareto chart, it is clearly visible that the major(vital-
20%) reasons of student bunking classes are-
Sleeping late at night
Insanely boring lectures
And the remaining reasons account for the rest 80%(trivial/ignorable) .
SLEEPING LATE AT NIGHT
CAUSES
Watching movies and serials and other
recreational activities
Late night chatting with friends.
Stack of assignments and maintenance of
practical records.
Late night birthday celebrations and
parties.
SOLUTIONS
Better time management
Maintaining self discipline
Insanely boring lecturesCAUSES
Inefficient faculty
Lack of interactive classrooms
Lack of interest in the subject
Less understanding in classes due to weak
basics
SOLUTIONS
Interactive and smart classes
Regular self study by students
CONCLUSION
Pareto chart is an effective and easy tool in finding the areas of big
problem.
It breaks the problem into several parts and then finds the most
problematic area.
Shows the path for finding the exact root causes
Helps in improving decision making.
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