Question

question 1 Consider a sample space S, and two events A and B such that P(A ∩ B) = 0.2, P(A ∪ B) = 0.6, P(B ∪ ̄A) = 0.8 (a) [0.5 points] Calculate P (A). (b) [0.5 points] Calculate P (B)

175

likes
873 views

Answer to a math question question 1 Consider a sample space S, and two events A and B such that P(A ∩ B) = 0.2, P(A ∪ B) = 0.6, P(B ∪ ̄A) = 0.8 (a) [0.5 points] Calculate P (A). (b) [0.5 points] Calculate P (B)

Expert avatar
Murray
4.5
92 Answers
Para calcular P(A), podemos utilizar la fórmula de inclusión-exclusión:

P(A) = P(A ∪ B) - P(B ∩ ̄A)

P(B ∩ ̄A) = P(B) - P(B ∩ A)

(a) Para calcular P(A):

P(A) = P(A ∪ B) - P(B ∩ ̄A)
P(A) = 0.6 - (P(B) - P(B ∩ A))

(b) Para calcular P(B):

P(B ∩ A) = P(A ∩ B) (por simetría)
P(B ∩ A) = 0.2

P(B ∪ ̄A) = P(B) + P( ̄A) - P(B ∩ ̄A)
0.8 = P(B) + (1 - P(A)) - 0.2

Simplificando la ecuación:

0.8 = P(B) + 1 - P(A) - 0.2
0.8 = P(B) - P(A) + 0.8

P(B) - P(A) = 0

P(B) = P(A)

Por lo tanto, P(B) = P(A).

Respondiendo a la pregunta (a):

P(A) = 0.6 - (P(B) - P(B ∩ A))
P(A) = 0.6 - (P(A) - 0.2)

Simplificando la ecuación:

P(A) = 0.4

Respondiendo a la pregunta (b):

P(B) = P(A)
P(B) = 0.4

Answer:
(a) P(A) = 0.4
(b) P(B) = 0.4

Frequently asked questions (FAQs)
What is the magnitude of vector A with components (3, -4) in unit vector form?
+
Question: Find the limit as x approaches 0 of (sin(x) - x) / (ln(1 + x) - x) using L'Hospital's Rule.
+
What is the product of 45 multiplied by 9 divided by 3 subtracted by 12 plus 4
+
New questions in Mathematics
Find 2 numbers that the sum of 1/3 of the first plus 1/5 of the second will be equal to 13 and that if you multiply the first by 5 and the second by 7 you get 247 as the sum of the two products with replacement solution
calculate the derivative by the limit definition: f(x) = 6x^3 + 2
-8+3/5
X^2 = 25
The graph of the equation x²= 4py is a parabola with focus F(_,_) and directrix y=_____ Therefore, the graph of x²=12y is a parabola with focus F(_,_) and a directrix y=_____
Elliot opened a savings account and deposited $5000.00 as principal. The account earns 4% interest, compounded annually. How much interest will he earn after 5 years? Round your answer to the nearest cent.
If f(x) = 3x 2, what is the value of x so that f(x) = 11?
Identify a pattern in the list of numbers.Then use this pattern to find the next number. 37,31,25,19,13
4. Show that if n is any integer, then n^2 3n 5 is an odd integer
is the x element (180,270), if tanx-3cotx=2, sinx ?
Convert 78 percent to a decimal
78 percent to a decimal
Find all real numbers x that satisfy the equation \sqrt{x^2-2}=\sqrt{3-x}
form a key for your lock containing the numbers 2 2 5 8 How many different keys can you form?
A property sold for $745,000 in a co-brokered transaction. The seller has agreed to pay a 7% commission to the listing firm. The listing firm has agreed to equally split the commission with the selling firm. If the buyer’s broker will receive 8% of the selling firm’s commission, how much commission will the buyer’s broker receive? $14,900 $3725 $$37250 $18625
Oi👋🏻 Toque em "Criar Nova Tarefa" para enviar seu problema de matemática. Um dos nossos especialistas começará a trabalhar nisso imediatamente!
Evaluate ab+dc if a=56 , b=−34 , c=0.4 , and d=12 . Write in simplest form.
6(k-7) -2=5
A small box measures 10 in. by 4 in. by 6 in. high. Find the volume of the box.
Suppose a car license plate consists of 2 letters and two digits of which the first cannot be zero. How many different plates can be engraved? consider only 26 letters and 10 digits draw an example of this.