Mathematics
If A and B are two complementary events then the relation between P(A) and P(B) is :
P(A) = P(B)
P(A) + P(B) = 0
P(A) + P(B) = 1
none of these
Probability
12 Likes
Answer
We know that,
The probabilities of two complimentary events add up to 1.
∴ P(A) + P(B) = 1
Hence, Option 3 is the correct option.
Answered By
5 Likes
Related Questions
Out of the vowels of English alphabet, one letter is selected at random. The probability of selecting the letter 'O' is :
1
When a die is thrown, the probability of getting an even number greater than 4 is :
If a letter is drawn from the letters of English alphabet, then the probability, that it is a letter of the word 'DELHI' is :
A card is selected at random from a well-shuffled deck of 52 cards. The probability of it being a face card is :