Question

Suppose the newspaper states that the probability of rain today is 55%. What is the complement of the event "rain today"?

1. rain yesterday
2. rain tomorrow
3. no rain today
4. no rain tomorrow

Answer 1

Option 3.

Explanation:

It is given that according to a newspaper the probability of rain today is 55%.

We need to find the complement of the event "rain today".

Complement of an event: It contain all possible outcomes other the required event.

Given event : Rain today

Complement of given event represent that there is rain but not today.

Complement of given event : No rain today.

Therefore, the correct option is 3.

Answer 2

3. No rain today.

Explanation:

We have been given that the newspaper states that the probability of rain today is 55%. We are asked to find the complement of the event "rain today".

We know that complement of an event A is everything else in the sample space that is not A or that does not represent A.

For example event is {Sunday}, so it complement will be all days of week except Sunday that is {Monday, Tuesday, Wednesday, Thursday, Friday, Saturday}.

The event is "rain today" for our given statement and the complement of "rain today" will be there is "no rain today".

Therefore, 3rd option is the correct choice.