Amultiple choice question has 18 possible answers, only one of which is correct. is it "significant" to answer a question correctly if a random guess is made? consider an event to be "significant" if its probability is less than or equal to 0.05.

It is not ''significant''

Step-by-step explanation:

Let's call the event

A : ''Answer a question correctly if a random guess is made''

Now we calculate the probability for the event A

In the exercise A occurs in only one way and the total cases are the number of possible answers

An event B is ''significant'' if

⇒A it is not a ''significant'' event

a negative exponent is translated as follows:

so, we have