Problem 3. Show the formula P((An B)U(A n B))- P(A) +P(B)-2P(AnB), which givgs the probability that...
Find the probabilities P(A), P(B), PAn B), PC), P D), PIAnD). Problem 3. Show the formula which gives the probability that exactly one of the events A and B will occur. [Compare with the forinula P(A U B) = P(A) + P (B)-P(An B), which gives the probability that at least one of the events A and B will occur.]
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...
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...
Problem 3: If P(A) 0.2, P(B) 0.1, and P(A or B) PIA U B) 0.28, then (a) (2.5 points) find the P(A and B). That is, find P(AnB). (b) (2 points) clearly explain whether the events A, B are mutually exclusive (disjoint). (c) (2 points) clearly explain whether the events A, B are independent based on probability
(1) If A and B are two events suchthat PA)1.P(B) -and P(AnB) -.Determine the following: 3 i) P(AU B) v) PCA'U B) ii) P(A'n B) vi) P(A'- B) iv) P(AnB') viii) P(A'-B')
"the following formula: P(A|B)= P(AnB) / P(A) represents " Addition Rule Conditional probability Multiplication Rule Independence
V n balls are numbered one through n; draw them (without replacement); what is the probability that at least one ball will be drawn with its number equal to the number of balls drawn? As n -oo what is the probability? Use P(A U BU...)P(A) +P(B) +-P(AnB)- This gives -1)1 n n-1 = 1 ~-~ 0.632121 kl Your assignment is to show how we get these last two equalities
10.00 polnts Exercise 4-21 Algo Let P(A)-0.41, P(B) 0.36, and P(ANB) 0.22 a. Are A and B independent events? O Yes because PAIB) PIA Yes because FIA n B)メ。 No because PIA | B) PIA) No because PA n B) #0 b. Are A and B mutually exclusive events? O Yes because PIAI B) PIA) Yes because RA n B) # 0 O No because PIA | B) PIA) @ No because P(A n Β) # O c. What is...
2. Suppose A and B are two events. Use the axioms of probability to prove the following (a) P(AnB) 2 P(A) P(B) 1 (b) Show that the probability that one and only one of the events A or B occurs is P(A)+ P(B) -2P(AnB). 3. There are 9 lights labeled 1 to 9, and they are lined up in a row in Boelter Hall. or budget reasons, we are going to turn off 3 of them. For security purposes, we...
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 will 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 of A and B. (c) Use the result in...