6. Establish what is meant by (a) a pair of mutually exclusive events and (b)a pair of statistically independent events.Prove, with reference to the axioms of probability and the rules ofboolean algebra, thatP(AUB) = P(A) + P(B) – P(AN B).The probability that a smoker who consumes over 40 cigarettes a daywill suffer from chronic respiratory illness is 0.4. The probability that hewill suffer from heart disease is 0.5. The probability that he will sufferfrom at least one of these ailments is 0.6(i) Find the probability that the smoker will suffer from both ailments,(ii) Find the probability that he will suffer from heart disease given thathe suffers from chronic respiratory illness.

Solution: 6. Let A be the event that a smoker will suffer from chronic respiratory illness and B be…

Answered: Establish what is meant by (a) a pair…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A shipment of 7 television sets contains 2 defective sets. A hotel makes a random purchase of 3 of the sets. If X is the number of defective sets purchased by the hotel, (a) find the probability distribution of X, express it in a table format. Probability distribution of X X P(X) (b) Find the cdf of X. (c) Find the E(X) and Var(X)
b. Determine P(F or D)= P(F or D). (Type an integer or a decimal.) c. Find the probability that a randomly selected adult is male. P(male) = (Type an integer or a decimal.)
If two events, A & B, are mutually exclusive, then the probability that either event would happen is? * P(A) + P(B) – P(A & B) always equal to 0 always equal to 1 O P(A) + P(B)
A student goes to the library. Let event A be that the student checks out a book and event B be that the student uses a library computer. Suppose that we happen to know that P (A) = 0.40, that P (B) = 0.30, and that P (B|A) = 0.5. Compute the following (1) P(Ac)(2) P(A AND B) (3) P(A|B)
P(A) + P(B) = 1 for any events A and B that are mutually exclusive. True False
Assume that a researcher randomly selects 14 newborn babies and counts the number of girls selected, x. The probabilities corresponding to the 14 possible values of x are summarized in the given table. Answer the question using the table. Probabilities of Girls x(girls) P(x) x(girls)| P(x) |x(girls)| P(x) 0.000 0.122 10 0.061 1 0.001 0.183 11 0.022 2 0.006 7 0.210 12 0.006 3 0.022 8 0.183 13 0.001 4 0.061 9 0.122 14 0.000 Find the probability of selecting 12 or more girls. 0.001 O 0.022 0.006 O 0.007
According to Bayes' Theorem, the probability of event A, given that event B has occurred, is as follows. P(A) P(BA) P(A) P(BA) + P(A) P(BA) Use Bayes' Theorem to find P(A| B) using the probabilities shown below. P(A| B)= 1 1 P(A) = 6' ) = -5₁₁ P (A) = ₁ P(B| A) = 77₁ and P (B| A') == 6' 2 The probability of event A, given that event B has occurred, is P(A| B) = (Round to the nearest thousandth as needed.)
Suppose that 20,000 married adults in a country were randomly surveyed as to the number of children they have. The results are compiled and are used as theoretical probabilities. Let X = the number of children married people have. P(x) ХP(x) 0.15 1 0.25 0.35 4 0.10 0.05 6 (or more) 0.05 (a) Find the probability that a married adult has three children. (Enter your answer to two decimal places.) (b) In words, what does the expected value in this example represent? O the average number of children married adults in the country have the average number of children adults in the country have O the number of children married adults in the country have O the number of children adults in the country have (c) Find the expected value. (Enter your answer to two decimal place.) children (d) Is it more likely that a married adult will have two to three children or four to six children? How do you know? O it is more likely to have two to three children, with p = 0.35 O it is more likely to have four…
Let A and B be two events such that the probability of B is 0.5 and the probability of both is 0.2. Find the probability of A given that B occurs.
The circuit shown below operates if and only if there is some path of functional devices from left to right. The probability that each device functions is shown for each device and the devices operate independently of each other. What is the probability that the circuit operates? 0.9 0.9 0.8 0.95 0.95 0.9 (A) None of these (B) 0.5263 (C) 0.1642 (D) 0.9850 (E) 0.9702
P18
Events A and B are independent. Suppose event A occurs with probability 0.19 and event B occurs with probability 0.76. Compute the following. (If necessary, consult a list of formulas.) (a) Compute the probability that A occurs but B does not occur. 0 (b) Compute the probability that B occurs or A does not occur (or both). 0 X Ś

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