2. Suppose A and B are two events. Use the axioms of probability to prove the...
3. There are 9 lights labeled 1 to 9, and they are lined up in a row in Boelter Hall. For we can't turn off 2 lights that are next to each other or 3 lights in a row, and we can't turn off the first and the last lights in the row. How many ways are there to turn off 3 lights? budget reasons, we are going to turn off 3 of them. For security purposes
2.28 Using the axioms of probability, prove Bonferroni's inequality: For events A and B, P(AB) 2 P(A) + P(B)-1
Problem 3. Show the formula P((An B)U(A n B))- P(A) +P(B)-2P(AnB), which givgs the probability that exactly one of the events A and B will occur. [Compare with the formula P(AU B) P(A) P(B) - P(AnB), which gives the probability that at least one of the events A and B will occur.]
l. Suppose that A, B, and C are events such that PLA] = P[B] = 0.3, P[C] = 0.55, P[An B] = For each of the events given below in parts (a)-(d), do the following: (i) Write a set expression for the event. (Note that there are multiple ways to write this in many cases.) (ii) Evaluate the probability of the event. (Hint: Draw the Venn Diagram. You may then want to identify the probabilities of each of the disjoint...
for part (c) , please use part (a) 2. Given events A and B (a) let C be the event that A will occur and B will not occur. Express C in terms of A and B. Let D be the event that B will occur and A wil not occur. Express D in terms of A and B (b) let E be the event that exactly one of the events A or B will occur. Express E in terms...
2. a) Let A and B be two events such that P(A) 4, P(B) .5 and P(AnB) 3 Find P(AUB). b) Let A and B be two events such that P(A)-5, P(B) 3 and P(AUB) .6. Find P(An B)
2. Given events A and B (a) let C be the event that A will occur and B will not occur. Express C in terms of A and B. Let D be the event that B will occur and A wil not occur. Express D in terms of A and B (b) let E be the event that exactly one of the events A or B will occur. Express E in terms (c) Use the result in (a) to find...
Cases in Probability Conditional Events - Coins & Jars Suppose there are two jars, A and B. Jar A contains 4 red and 3 blue balls. Jar B contains 2 red and 5 blue balls. Flip a coin twice and select Jar A on 2 heads. Otherwise select Jar B. Next, draw [randomly] one ball from the selected jar. What is the probability of getting a red ball Given a red ball was selected, what is the probability that it...
2. Suppose A, B, and C are events of strictly positive probability in some probability space. If PAC) 〉 P(BC) and P(A|Cc) 〉 P(BİC"), is it true that P(A) 〉 P(B)? If P(AC) > PlAIC") and P(BIC) > P(BIC"), is it true that P(An BC) > P(An BIC)? 2. Suppose A, B, and C are events of strictly positive probability in some probability space. If PAC) 〉 P(BC) and P(A|Cc) 〉 P(BİC"), is it true that P(A) 〉 P(B)? If...
3. Two different events can occur called A and B. The probability that A occurs is 0.90, the probability that B is 0.70, while the probability that both occur is 0.65. Are the two events independent? What is the probability that either of the events occurs? If B occurs, what is the probability that A will occur? Sixty four athletes are to compete for an Olympic event. How many distinct ways can the three medals, gold, silver, and bronze be...