App Logo

No.1 PSC Learning App

1M+ Downloads
If A and B are two events, then the set A ∩ B denotes the event

AA or B

BA and B

CA exclusive or B

DA without B

Answer:

B. A and B

Read Explanation:

If A and B are two events, then the set A ∩ B denotes the event ‘A and B’. Thus, A ∩ B = {ω : ω ∈ A and ω ∈ B}


Related Questions:

If the standard deviation of a population is 8, what would be the population variance?
A bag contains 9 discs of which 4 are red, 3 are blue and 2 are yellow.The discs are similar in shape and size. A disc is drawn at random from the bag.Calculate the probability that it will be either red or blue.
If the mean of 5 observations x +1,x + 2, x + 3 , x + 4 and x + 5 is 15 then what is the mean of the first 3 observations?

മധ്യാങ്കം കാണുക

 

class

0 - 10

10 - 20

20-30

30-40

40-50

50-60

f

3

9

15

30

18

5

which of the following is the merits of arithmetic mean

  1. It has a rigid definition
  2. AM is highly affected by extreme values
  3. AM is based upon all the observations
  4. It is least affected by fluctuations of sampling