A Box contain 12 balls out of which x are black.if one ball is drawn at random from the box.what is the probablity that it will be black ?If 6 more black balls are out in the box the probablity of drawing a black ball is now the double of what was before .Find x?
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
A Box contain 12 balls out of which x are black.if one ball is drawn at random from the box.what is the
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