Class name Subject Book title Chapter number Content Created at
Class XII Mathematics Mathematics Part-II 7 F) = P({THH}) = Now,supposewearegiventhatthefirstcoinshowstail,i.e.Foccurs,thenwhatis the probability of occurrence of E? With the information of o...
Class XII Mathematics Mathematics Part-II 7 P(S|F) = P(F|F) = 1 We know that P(S∩F) P(F) P(S|F) = = =1 P(F) P(F) P(F∩F) P(F) Also P(F|F) = P(F) = P(F) =1 Thus P(S|F) = P(F|F) = 1 Property 2 I...
Class XII Mathematics Mathematics Part-II 7 the child is a boy’ Then E = {(b,b)} and F = {(b,b), (g,b), (b,g)} Now E ∩ F = {(b,b)} 3 1 Thus P(F) = 4 and P (E ∩ F )=4 P(E ∩ F) 1 Therefore P(E|...
Class XII Mathematics Mathematics Part-II 7 given that B has already occurred. Solution The sample space has 216 outcomes. (1,1,4) (1,2,4) ... (1,6,4) (2,1,4) (2,2,4) .. (2,6,4)   Now A =...
Class XII Physics Physics Part-II 1 follow the Cartesian sign convention. According to this convention, all distances are measured fromthepoleofthemirrorortheoptical centre of the len...
Class XII Mathematics Mathematics Part-II 7 Fig 13.1 described as S = {(H,H), (H,T), (T,1), (T,2), (T,3), (T,4), (T (T,6)} where (H, H) denotes that both the tosses result into headand(T,i)de...
Class XII Mathematics Mathematics Part-II 7 E : head on third tossF : heads on first two tosses (ii) E : at least two headF : at most two heads (iii) E : at most two t,ilsF : at least one tai...
Class XII Physics Physics Part-II 3 the maximum kinetic energy of the emitted photoelectrons increases linearly with the frequency of the incident radiation, but is independent of its...
Class XI Economics Statistics for Economics 1 C HAPTER Introduction Studying this chapter should told this subject is mainly around enable you to: what Alfred Marshall (one of the • know what t...
Class XI Economics Statistics for Economics 1 you are called an employee. When you employ somebody, giving is limited, you have to choose only them a wage, you are an employer. those things tha...
Class XI Economics Statistics for Economics 1 of some wanted expensive gifts to bring to the more instances of scarcity? king when asking for his daughter’s The resources which the producers ha...
Class XI Economics Statistics for Economics 1 leave aside here income from Consumption, Production and international trade and investment). Distribution This is the study of Distribution. If yo...
Class XI Economics Statistics for Economics 1 certain special studies that your own life better. Similarly, you heaconcern the basic problems facing a of — some of you may even have country.The...
Class XI Economics Statistics for Economics 1 healthy/ more healthy; factors underlying an economic unskilled/ skilled/ highly skilled, etc.). problem?And,that,insuchasituation, Such qualitativ...
Class XI Economics Statistics for Economics 1 TATISTICSD OES? of persons that is important to record as accurately as possible even though Statistics is an indispensable tool for they cannot be...
Class XI Economics Statistics for Economics 1 numerical In another instance, the economist measur es (such as mean, variance might be interested in predicting the etc., about which you will lea...
Class XI Economics Statistics for Economics 1 methods help plays a vital role in decision making. formulate appropriate economic For example, in the present time of policies that solve economic...
Class XI Economics Statistics for Economics 1 are limited and scarce. Scarcity is the root of all economic problems. • Resources have alternative uses. • Purchase of goods by consumers to satis...
Class XI Economics Statistics for Economics 2 C HAPTER Collection of Data Studying this chapter should chapter, you will study the sources of enable you to: data and the mode of data collection...
Class XI Economics Statistics for Economics 2 to 272 million tonnes in 2016-17 know about the popularity of a filmstar as shown in the following table. The years are represented by variable X a...
Class XI Economics Statistics for Economics 2 from and how do we collect Do you know how a manufacturer these? In the following sections we will decides about a product or how a discuss the typ...
Class XI Economics Statistics for Economics 2 mark the appropriate option) to understand and avoid ambiguous or difficult words. How much do you spend on books in a month? • The questions shoul...
Class XI Economics Statistics for Economics 2 Would you like to do a job after collegemultiple-choice questions is that they or be a housewife? tend to restrict the answers by providing alterna...
Class XI Economics Statistics for Economics 2 reach in person or by telephone. It does researcher (or notallowinfluencingoftherespondents by the interviewer. It also permits the investigator) r...
Class XI Economics Statistics for Economics 2 suitability of questions, interview is better in cases where the clarity of instructions, performance of enumerators and the cost and time responde...