Advertisements
Advertisements
प्रश्न
If A and B are mutually exclusive events P(A) = `3/8` and P(B) = `1/8`, then find `"P"("A" ∪ "B")`
Advertisements
उत्तर
P(A ∪ B) = P(A) + P(B)
Since A and B are mutually exclusive events.
`"P"("A" ∪ "B") = 3/8 + 1/8`
= `(3 + 1)/8`
= `4/8`
= `1/2`
APPEARS IN
संबंधित प्रश्न
If A and B are mutually exclusive events P(A) = `3/8` and P(B) = `1/8`, then find `"P"(bar"A")`
If A and B are mutually exclusive events P(A) = `3/8` and P(B) = `1/8`, then find `"P"(bar"A" ∩ "B")`
If A and B are mutually exclusive events P(A) = `3/8` and P(B) = `1/8`, then find `"P"(bar"A" ∪ bar"B")`
If A and B are two events associated with a random experiment for which P(A) = 0.35, P(A or B) = 0.85, and P(A and B) = 0.15 Find P(only B)
If A and B are two events associated with a random experiment for which P(A) = 0.35, P(A or B) = 0.85, and P(A and B) = 0.15 Find `"P"(bar"B")`
If A and B are two events associated with a random experiment for which P(A) = 0.35, P(A or B) = 0.85, and P(A and B) = 0.15 Find P(only A)
A die is thrown twice. Let A be the event, ‘First die shows 5’ and B be the event, ‘second
die shows 5’. Find P(A ∪ B)
The probability of an event A occurring is 0.5 and B occurring is 0.3. If A and B are mutually exclusive events, then find the probability of P(A ∪ B)
The probability of an event A occurring is 0.5 and B occurring is 0.3. If A and B are mutually exclusive events, then find the probability of `"P"("A" ∩ bar"B")`
The probability of an event A occurring is 0.5 and B occurring is 0.3. If A and B are mutually exclusive events, then find the probability of `"P"(bar"A" ∩ "B")`
A town has 2 fire engines operating independently. The probability that a fire engine is available when needed is 0.96. What is the probability that a fire engine is available when needed?
A town has 2 fire engines operating independently. The probability that a fire engine is available when needed is 0.96. What is the probability that neither is available when needed?
Choose the correct alternative:
A number x is chosen at random from the first 100 natural numbers. Let A be the event of numbers which satisfies `((x - 10)(x - 50))/(x - 30) ≥ 0`, then P(A) is
Choose the correct alternative:
It is given that the events A and B are such that P(A) = `1/4`, P(A/B) = `1/2` and P(B/A) = `2/3`. Then P(B) is
