Set Theory and Venn diagrams. Formula for Conditional Probability. If you’re going to take a probability exam, you can better your chances of acing the test by studying the following topics. Quantitative Aptitude Made Simpler – Problems on Ages (Basics and Methods, Examples, Math Tricks) The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. In the above four types, we will have 13 cards in each type. Probability is the number of ways of achieving success to the total number of possible outcomes. If one student is picked from a group of 6 boys and 7 girls. You can get good score only by practicing more and more. The relationship between mutually exclusive and independent events . of occurrences of event; n(U)= total possible outcomes. P(B) Conditional Probability: P(A | B) = P(A∩B) / P(B) Bayes Formula: P(A | B) = … Let us come to know the following stuff related the pack of 52 playing cards. Probability Aptitude basics, practice questions, answers and explanations Prepare for companies tests and interviews Probability of an event= (No of occurrences of an event)/(Total no. Probability Important Formulas on Aptitude questions and answers for interview, competitive examination, entrance test and Career Test Probability is a measure of how likely an event is to occur. An operation which can produce some well-defined outcomes is called an experiment. Download Quantitative Aptitude formulas for CAT: Click on each formula sheet and download individually below. Note: Here, the favourable outcome means the outcome of interest. n (S) is the total number of events in the sample space. If all the possible outcomes of an experiment are known but the exact output cannot be predicted in advance, that experiment is called a random experiment. Basic formulas for Probability. Probability: Probability of Event: No. You will find solved aptitude examples with detailed explanation and important formulas. - Cost Price (C.P) 2.Loss = C.P. Permutations and combinations. That doesn’t mean that other topics are less important. Permutations and combinations. 1/2. Probability Study Tips. They have a high probability of being on the exam. Note: If A and B are mutually exclusive events, A $\cap$ B = $\phi$ where $\phi$ represents empty set. Statistics is the study of the collection, analysis, interpretation, presentation, and organization of data. Heart - 13 cards 3. Then, $$E \subseteq S$$. Solved examples with detailed answer description, explanation are given and it would be easy to understand. In the case of simple events, we take the probability of occurrence of single events. When a die is rolled, outcome of getting $1$ or $2$ or $3$ or $4$ or $5$ or $6$ is an event. If two coins tossed once, what is the probability of occurrence of the head at least once? For blogs on other … Spade - 13 cards 4. Probability P (E) = Number of Wanted Outcomes / Number of Possible Outcomes Probability is always between 0 and 1 Probability is a fundamental concept in math and statistics. A. Use this book to supplement your own formula book and see if you can add anything additional to it from my compilation. admin - January 1, 2018. Diamond - 13 c… of Favorable Outcomes/Total no. • Chapter-wise math formulae can be downloaded in PDF format by Students from class 6 to 12. A thorough theoretical understanding about various counting techniques will help you to tackle all the aptitude questions from this area in an interesting way with the help of tricks & important formulas. Quantitative Aptitude Formulas & Shortcut Tricks for All Govt Jobs Exam Quantitative Aptitude Formulae List for Govt. Then the conditional probability of the occurrence of B given that A has already occurred is. Picking up a ball of certain colour from a bag containing balls of different colours. When a coin is tossed twice, the event of getting Tail(T) in the first toss and the event of getting Tail(T) in the second toss are independent events. Hello Friends, Today we are presenting an article on “How to Solve Probability Questions in competitive examination. Cards of spades and clubs are black cards. Probability of head in a toss=1/2 Solution: Total number of cards a standard pack contains = 52. Profit and Loss, Discount. Probability is very important chapter,Here we put down some formula and Facts that are based on this chapter after that we give some examples related on formula and chapter,which help you better understand about this chapter. Probability is quantitative measure of the chance of occurrence of a particular event. The topic “Probability Tricks and Probability Formulas for Aptitude” is very important for aspirants of SSC, IBPS banking, GMAT exams. Favorable number of outcomes; Total number of outcomes; Probability ranges between 0 and 1. Probability can range in from 0 to 1, where 0 means the event to be an impossible one and 1 indicates a certain event. n (A) is the number of favourable outcomes. For example, … Now we will discuss some basic ideas of Probability. If A denotes (not-A), then P(A) = 1 - P(A). The relationship between mutually exclusive and independent events . Sample Space is the set of all possible outcomes of an experiment. Hence occurrence of Head and Tail are mutually exclusive events. For example, we generally say, 'it may rain today'. The basic understanding of this concept is very essential to understand different types of probability problems given in the examination and solve by probability … – Earl Nightingale” SSC CGL Tier-1 Short Tricks and Formulas – Learn as Quickly as Possible! Formula for Conditional Probability. Simple interest and compound interest. Probability Range: 0 ≤ P(A) ≤ 1; Rule of Addition: P(A∪B) = P(A) + P(B) – P(A∩B) Rule of Complementary Events: P(A’) + P(A) = 1; Disjoint Events: P(A∩B) = 0; Independent Events: P(A∩B) = P(A) . This is because the occurrence of getting Tail(T) in any toss does not influence the occurrence of getting Tail(T) in the other toss. You will find solved aptitude examples with detailed explanation and important formulas. of Favorable Outcomes/Total no. The Probability definition might be confusing, but when you understand it you can easily solve even the toughest problems. Kings, Queens and Jacks are called face cards. The four different types of cards are shown in the picture given below. Spade - 13 cards 4. Learn Quantitative Aptitude – Quants : Formulas, Tips, Tricks, Shortcuts & Questions. This is the aptitude questions and answers section on "Probability" with explanation for various interview, competitive examination and entrance test. When two coins are tossed, the possible outcomes are (H, H), (H, T), (T, H), (T, T). Conclusively we can say that ‘Probability is the measure of Uncertainty’. It has six faces and each of the six faces shows a different number of dots from $1$ to $6$. Solved examples with detailed answer description, explanation are given and it would be easy to understand. In this section of quantitative aptitude, we will learn about the concept of probability keeping in mind the type and level, of questions that are asked in all the crucial competitive exams. Hence there are $6$ exhaustive events. Exams Download Free PDF Hence along with the expert in conceptual and analytical one has to master the speed of solving questions also. Quantitative Aptitude section checks the numerical ability, calculation ability and logical formula application of the candidates. 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