Confusion over mutually exclusive and collectively exhaustive events. As with many concepts from probability, some examples will help. A and c do not have any numbers in common so pa and c 0. Mece a guide to the mece principle with applied examples. Difference between mutually exclusive and independent. Not only do the questions need to be clear, but the response options must also. Probability examples of the difference between mutually. That is, if you want to use a variable, it needs to be mutually exclusive and collectively exhaustive. Having spent six years as a management consultant, i found myself. Is there a word that means mutually exclusive and collectively exhaustive as an adjective or to be mutually exclusive and collectively exhaustive as a verb, or is there a noun that describes some set as mutually exclusive and collectively exhaustive. Exhaustive and mutually exclusive a variable is collectively exhaustive if when you use the variable to measure something, every case can fit.
Be more mece mutually exclusive and collectively exhaustive. Collectively exhaustive but not mutually exclusive poker hand. Logical thinking mece mutually exclusive collectively exhaustive. Exactly one of these outcomes is going to be true, or will have materialized, at the end of the experiment. Mece thinking is popular with strategy consultancies see, for instance, davis paper, referenced below, for its use at mckinsey. The mutually exclusive collectively exhaustive mece principle will make you a better decisionmaker and problemsolver. Ok, now that youre clear on what 1 mutually exclusive and 2 completely exhaustive mean, youve got all the building blocks for understanding the mece principle for problem structuring. The collection of all possible events is called short answer 40. Mutually exclusive and collectively exhaustive listed as mece. Gambar 1 a event mutually exclusive dan b mutually exclusive dan collectively exhaustive komplemen event a, dinotasikan, didefinisikan sebagai himpunan seluruh outcome yang.
Looking for the abbreviation of mutually exclusive and collectively exhaustive. As a homely example, if you are trying to decide whether to wear a raincoat or carry an umbrella, the alternatives presumably are not mutually exclusive. Consider focusing on being ceme, rather than being mece. In the fields of machine learning and data mining, feature selection methods are used to identify the most costeffective predictors and to give a deeper understanding of pattern recognition and extraction. Chances are that your boss will ask you to ensure that you organize. Again the team will check if they are mutually exclusive and collectively exhaustive mece. The events even 2,4 or 6 and not6 1,2,3,4, or 5 are collectively exhaustive but not mutually exclusive. Mece mutually exclusive collectively exhaustive in contracts. Exhaustive is denned as a property or attribute of survey questions in which all possible responses are captured by the response options made available, either explicitly or implicitly, to a respondent. Mutually exclusive collectively exhaustive mckinsey pdf. Use practical examples and drills to force the point home. All complementary events are mutually exclusive, but not vice versa. Tell how you might revise those questions to make them mutually exclusive and collectively exhaustive.
If you manage to get a position at mckinsey, or at any other mbb for that matter, you are likely to have to handle huge amounts of data. Mece atau kependekan dari mutually exclusive and collectively exhaustive, merupakan suatu konsep yang menerapkan adanya kesempurnaan atau mendekati kerangka berpikir. California as a state is bigger than las vegas area as a metropolitan area, and we cannot make comparison between two categories when in need. Mutually exclusive items can only fit into one category at a time and collectively exhaustive all items can fit into one of the categories. Mece stands for mutually exclusive and collectively exhaustive. What is the abbreviation for mutually exclusive and collectively exhaustive. The difference between mutually exclusive and independent events is that mutually exclusive events, occurrence of one event will result in the nonoccurrence of the other.
An important guideline for improving your accuracy and accordingly your confidence that you did a good job is to think analytically and draft conceptually, in mckinseys terminology, mece mutually exclusive, collectively. However, not all mutually exclusive events are collectively exhaustive. Probability of mutually exclusive events with venn diagrams. This concept is often foggy to even the best of studentseven if they just completed a course in statistics. Mutuallyexclusiveandcollectivelyexhaustive feature selection scheme. Mutuallyexclusiveandcollectivelyexhaustive feature. Though, not all mutually exclusive events are commonly exhaustive. Response options to a survey question are mutually exclusive when only one response option can be true for a single respondent. Probabilities assigned to a set of mut ually exclusive and collectively exhaustive events m u st total. Mece stands for mutually exclusive and collectively exhaustive and is one of the hallmarks of problem solving at mckinsey the mckinsey way by ethan m. In this post, lets look at how you can be more mece in your thinking. We could denote that events a and b are mutually exclusive by the formula a. Put simply, it is a principle that will help you sharpen your.
Thereafter, the mutually exclusive collectively exhaustive mece method 6 was applied for feature extraction select parent methods, and the most compatible technique with them. Senior consultant talent standard consulting technology. Mece mutually exclusive and collectively exhaustive. Mutually exclusive adalah peristiwa yang terjadi terpisah satu sama lain. Mutually exclusive 2 a bag contains six yellow jerseys. Hydrogeological conceptual model building and testing. Abiding by this tip and using it in future surveys will help you create a more complete and accurate script to make certain you are gaining actionable information for marketing research and strategy development for your business. Mece is a famous consulting principle which means mutually exclusive, collectively exhaustive. Tutorial on finding out whether two given events are mutually exclusive.
In probability two events are said to be mutually exclusive if and only if the events have no shared outcomes. A free powerpoint ppt presentation displayed as a flash slide show on id. Furthermore, all sets of two events are either mutually exclusive or mutually inclusive, whereas sets of three or more events can be neither mutually exclusive nor mutually inclusive in order to gain a good understanding of collective exhaustiveness and. One of the complications of the drafting principle to be accurate is a drafters tendency to be exhaustive or to ascertain that the concept is wellcovered. The term mutually exclusive, comprehensively exhaustive describes a list of options in which all possibilities are co can be abbreviated as mece. Mece stands for mutually exclusive and collectively exhaustive 1. Mece abbreviation stands for mutually exclusive and collectively exhaustive. When applied to information, mutually exclusive ideas would be distinctly separate and not overlapping. Download it once and read it on your kindle device, pc, phones or tablets. Mar 29, 2019 this probability video tutorial provides a basic introduction into mutually exclusive events with the use of venn diagrams.
Mece mutually exclusive, comprehensively exhaustive. Aug 30, 2008 mutually exclusive you can get heads or tails, but not both. Mece is a way of segmenting information into subelements that are mutually exclusive and collectively exhaustive. Remembering the phrase mutually exclusive and collectively exhaustive goes a long way for survey writers. Mutually exclusive events always have a different outcome. According to mece, any list should be mutually exclusive the members of the list should exclude each other, i. Mutuallyexclusiveandcollectivelyexhaustive feature selection. But they need to cover all possible causes of the clients problem collectively exhaustive.
Mece, pronounced me see, an acronym for mutually exclusive and collectively exhaustive, is a popular mantra at mckinsey. The mece principle suggests that to understand and fix any large problem, you need to understand your options by sorting them into categories that are. Mutually exclusive and independent events to understand mutually exclusive events to understand independent events to understand when to use the addition and. It is a technique used in management consulting to facilitate a structured approach to solving some of the worlds most complex business problems. Such events are so that when one happens it prevents the second from happening. If we consider the events as sets, then we would say that two events are mutually exclusive when their intersection is the empty set. Scribd is the worlds largest social reading and publishing site. In this article, we will cover how to utilize mece in a case interview setting. A lucid introduction to the field is howard raiffas. However, what does this mean in terms of probability theory. In order for these question types to be useful, the response categories must be mutually exclusive and exhaustive. In other words, elements should exclude each other, i. Be mecemutually exclusive and collectively exhaustive. Be more mece mutually exclusive and collectively exhaustive by arnaud chevallier february 15, 2011 no comments this is part 2 of our 4part on mece thinking part 1, part 2, part 3, and part 4.
Introduction to probability john tsitsiklis and patrick jaillet. Second, collectively exhaustive means that the set of ideas is inclusive of all possible options. Whats the difference between mutually exclusive events. Translation find a translation for mutually exclusive and collectively exhaustive in other languages.
So, lets look at our last example and ask ourselves the question. Mutually exclusive is a statistical term describing two or more events that cannot occur simultaneously. Jul 02, 2010 to do so, you must organize these answers in a way that is mutually exclusive and collectively exhaustive sometimes written as mutually exclusive and completely exhaustiveor mece pronounced mee see. Collectively exhaustive events definition and examples. Apr 23, 2018 mece stands for mutually exclusive and collectively exhaustive. Consider a survey question that asks respondents, how long do you spend commuting each day round trip. The mece acronym, pronounced meesee, is frequently used in a consulting environment.
In probability theory the probability of seeing any of these events is the same as the sum of the probabilities of seing them individually. Rarely will greater detail be needed at this stage. Two events are said to be mutually exclusive events when both cannot occur at the same time. If it is not known whether a and b are mutually exclusive, assume they are not until you can show otherwise. The elements of this sample space are mutually exclusive and collectively exhaustive. Mckinsey consultants use mece frameworks all the time. If event a and event b cannot occur at the same time, then a and b are said to be 29. Going back to the sixsided dice example, the set 1,2,3,4,5,6 is mutually exclusive and collectively exhaustive. In some forms of mutual exclusion only one event can ever occur, whether collectively exhaustive or not.
Case interview mece framework shapes how consultants in the mbb approach their clients problems and figure out an effective and comprehensive solution. A video explaining mutually exclusive events, complementary events, exhaustive events and independent events. Jan 30, 20 mece stands for mutually exclusive and collectively exhaustive and is one of the hallmarks of problem solving at mckinsey the mckinsey way by ethan m. When atleast one of the events occur compulsorily from the. The mutually exhaustive collectively exhaustive mece framework is an important problem structuring principle that consultants use to organize data efficiently and comprehensively. All sets of events are either collectively exhaustive or not. If two events are mutually exclusive and collectively. However, only including the two first hypotheses, claiming they are mutually exclusive and collectively exhaustive, would set up a false dilemma as parts of both hypotheses can be correct at the same time. To do so, you must organize these answers in a way that is mutually exclusive and collectively exhaustive sometimes written as mutually exclusive and completely exhaustive or mece pronounced mee see. Good survey questions elicit responses that are both valid and reliable measures of the construct under study. Mutually exclusive, collectively exhaustive medium.
Dua hal yang harus dipahami dalam konsep probabilitas adalah mutually exclusive dan collectively exhaustive. Examples for mutually exclusive collectively exhaustive discrete variable continuous variable these concepts describe the characteristics of variables. Mece is a principle used by management consulting firms to describe a way of organizing information. Same notification received 21march20 when manually run liveupdate.
This sample space, the second one, involves some irrelevant details. Mutually exclusive events definition with solved example. Yates probability 3rd edition solutions ee 3150 lsu. Pdf the objective of this paper is to test two hypotheses in the context of. Mece pronounced me see is principle often used by management consulting firms such as mckinsey to describe a way of organizing. This is part 2 of our 4part on mece thinking part 1, part 2, part 3, and part 4. Mece, pronounced mee see, is a concept commonly used in top consulting firms such as mckinsey, bcg or bain.
Though the division above is mutually exclusive and collectively exhaustive, it is still not mece. Mar 12, 2009 dua hal yang harus dipahami dalam konsep probabilitas adalah mutually exclusive dan collectively exhaustive. The webs largest and most authoritative acronyms and abbreviations resource. It is mutually exclusive and collectively exhaustive. Conversely, in independent events, occurrence of one event will have no influence on the occurrence of the other. Do you see how the next time you are faced with a complex issue, using the mece framework will assist you with. Statistics mutually exclusive and collectively exhaustive. Collectively exhaustive you cannot get anything other than heads or tails. The acronym mece stands for mutually exclusive and collectively exhaustive. If two events are mutually exclusive and collectively exhaustive, what is the probability that both occur at the same time. Events are mutually exclusive w h en there is no possibility that if one event occurs, t he other. Collectively exhaustive events are also known as jointly exhaustive events.
You can use the mece framework to help you think clearly about a business problem. A respondent who commutes for 30 minutes each day could choose either the. The mece principle, pronounced mesee, is a grouping principle for separating a set of items into subsets that are mutually exclusive me and collectively exhaustive ce. Consultants usually solve clients problems using a framework. Some might argue that the third hypothesis overlaps to some extent with the other two, violating the mutually exclusive principle. If two equally likely events a and b are mutually exclusive and collectively exhaustive, what is the probability that event a occurs. Mutually exclusive events date period kuta software llc. If events a and b are mutually exclusive and collectively. Similarly, the possibilities for action must be mutually exclusive and collectively exhaustive.
Pdf using functional metrics to facilitate designing collectively. For example, if the coin toss gives you a head it wont give you a tail. Hi everyone, i know it might be easy, but i have really a diculity to distinguish between an asset class being exclusive and being exhaustive. When two or more events form the sample space collectively than it is known as collectively exhaustive events.
For a framework to be mece, its different parts cannot overlap mutually exclusive. The sum of the probabilities of all mutually exclusive and collectively exhaustive events is 1 0. What is the abbreviation for mutually exclusive and. The events 1 and 6 are mutually exclusive but not collectively exhaustive. I am studying mutually exclusive events versus collectively exhaustive, and im not sure if im confusing them. It helps you see the situation more clearly and reach conclusions that are really going to help your business. Whats the difference between mutually exclusive events and. Weve talked about how thinking in a mutually exclusive and collective exhaustive way can help you actively drive structure in complex problems. In todays post we will explain the steps to build hypotheses in a more effective, methodical and, for a lack of a better word, a more mece mutually exclusive and collectively exhaustive way when we do cases with candidates, even our own clients, what always surprises us is how messy their hypotheses can be. In this short tutorial we teach you 3 simple secrets to make your own frameworks mece in case interviews. Also advise of any suspicious activity or unwanted symptoms on the system. Mece is an acronym for the phrase mutually exclusive, collectively exhaustive. The following may not correspond to a particularcourse on mit opencourseware, but has beenprovided by the author as an individual learning resource. This study proposes a novel mutually exclusive and collectively exhaustive mece feature selection scheme.
Mece a guide to the mece principle with applied examples mece is a best practice method to lay down a robust structure for your case interview. Request pdf mutuallyexclusiveandcollectivelyexhaustive feature selection scheme in the fields of machine learning and data mining, feature selection. Exhaustive, exclusive, continuous, and discrete examples. In the planning phase some teams build out to a level eight set of questions. The sum of the probabilities of all mutually exclusive and. Is it that for a set of mutually exclusive possibilities, their corresponding probabilities always sum to 1. Mutually exclusive and collectively exhaustive how is. When a sample space is distributed down into some mutually exclusive events such that their union forms the sample space itself, then such events are called exhaustive events. Find out what is the most common shorthand of mutually exclusive and collectively exhaustive on. The team will continue building a level four and level five set of questions for each question.
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