General rule - probability rule, Mathematics

Assignment Help:

GENERAL RULE

A general rule is to subtract the probabilities with an even number of components inside the parentheses and add those with an odd number of components (one or three) to arrive at the probability of events.

Example

 

Consider a bag containing 4 white and 5 black balls. A man draws 3 balls at random; let us see what is the probability that all three are black?

The total number of ways in which 3 balls can be drawn is 9C3and the number of ways of drawing 3 black balls is 5C3therefore the probability of drawing 3 black balls is given by

P(All three are black)

1608_general rule.png

Related Discussions:- General rule - probability rule

Calculus online, need help completing my online text. can provide login det...

need help completing my online text. can provide login details

Tangent lines, Recall also which value of the derivative at a specific valu...

Recall also which value of the derivative at a specific value of t provides the slope of the tangent line to the graph of the function at that time, t. Thus, if for some time t the

Converting, I need help converting my project fractions to the number 1.

I need help converting my project fractions to the number 1.

Mr, Probability of A is 85% Probability of B is 45% Probability A and B 56%...

Probability of A is 85% Probability of B is 45% Probability A and B 56% What is the probability of not either A or B?

Addition of like terms with same signs, Case 1: Suppose we are given...

Case 1: Suppose we are given expressions like 3abc and 7abc and asked to compute their sum. If this is the case we should not worry much. Because adding like exp

Algebra, (x+15)/y=10 where y=5

(x+15)/y=10 where y=5

Registration, Iam register on your website but dont have any reply by this ...

Iam register on your website but dont have any reply by this website and no assignment.

What is the probability of choosing a red ball, Q. What is the probability ...

Q. What is the probability of choosing a red ball? Ans. A box contains a red, blue and white ball. Two are drawn with replacement. (This means that one ball is selected, i

Draw a graph model with the adjacency matrix, QUESTION (a) Draw a graph...

QUESTION (a) Draw a graph model with the following adjacency matrix.                         (b) The diagram below shows different cities labelled a to g and z. Also sh

????? ???????, ???? ????? ??????? ?? ????? ??? ?? ????? ??????? ??????

???? ????? ??????? ?? ????? ??? ?? ????? ??????? ??????

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd