Statistics Tutors for Class 9 - 10 in Delhi

The word Statistics is used in various places. Statistics as a subject is a singular word which represents a social science and branch of mathematics which deals with collection,classification,tabulation ,analysis, presentation of data. It is broadly classified under two heads: 1. Descriptive Statistics 2. Inferential Statistics (which includes inferences and testing of hypothesis).

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Let probability of getting tail p(T)=1/2 let it is success i.e p =1/2 probability of getting head p(H)=1/2 i.e not getting tail q=1/2 By bernoulli trial p(X =x) = nCx q^(n-x)p^x where n =4 p(X=x) = 4Cx(1/2)^(4-x)×(1/2)^x p(X=x) =4Cx(1/2)^4 probability of getting atmost 1 tail p(X

Team A has 60 students.

4 are eliminated by their own team hence chance of getting eliminated by A team is 4/60 and 2 are eliminated by team B. Hence chance of eliminating A's team by B team is 2/60

Hence toatal chance of eliminating A's team memeber is 4/60*2/60= 1/15*1/30= 1/145

Similarly, for B team the total probability of elimination is 3/20*1/20= 3/400

Variation due to assignable cause in product occurs due to difference in Total quality management policies of a firm. Variation in strict maintainence and implementation of quality ensuring techniques like quality check, quality circles, kiazen etc leads to variation in assignable cause in a product. Since the assignable cause refers to a detectable error at the firms level, and this occurs due to non complaince of check at the very first level of oocurence rather than identifying when the product is made. Hence the variation in assignable cause is due to variation or lack in quality checks

Indian Statistical Insiute ISI

ISI,Kolkata

Fluorine

B the order of pairs of cases on both variables

Sqc take care of variation due to assignable causes (not a random causes).