A group of people were asked if they had run a red light in the last year. 325 responded "yes", and 294 responded "no".
Find the probability that if a person is chosen at random, they have run a red light in the last year.
no way to tell.
However, the probability that they answered "yes" to the question is
325/(325+294) = 0.525
Assuming the 619 people were chosen at random.
Poorly worded problem.
To find the probability that if a person is chosen at random, they have run a red light in the last year, we need to divide the number of people who responded "yes" by the total number of respondents.
In this case, 325 people responded "yes" and 294 people responded "no". So, the total number of respondents is 325 + 294 = 619.
Therefore, the probability of randomly selecting a person who has run a red light in the last year is 325/619 ≈ 0.525, or 52.5%.
A couple plans to have three children. What is the probability that.
a) they have all boys?
b) they have at least one girl?
couple plans to have three children. What is the probability that.
a) they have all boys?
b) they have at least one girl?