Question

If the probability of it snowing today is 7/10 then what is the complement or the probability of it notsnowing today?A) 10/7B) 3/10C) 1/3D) 1/10

Answer 1

Okay, here we have this:

Considering the provided information and probability, we are going to calculate the requested probability, so we obtain the following:

So let's remember that the probability of an event plus its complement is equal to 1, therefore we have:

Probability of snow falling+Probability of not snowing=1

Probability of not snowing=1-Probability of snow falling

Probability of not snowing=1-(7/10)

Probability of not snowing=(10/10)-(7/10)

Probability of not snowing=(10-7)/10

Probability of not snowing=3/10

Finally we obtain that the correct answer is the option B.