Math Probability
posted by Antonio .
At a political rally there are 20 republicians 13 democrates 6 independents. if a person is chosen at random what is the probability that the person is either a democrate or and independent?

"at random" means all choices have equal probability.
Sample space = 20+13+6=39
There are 13 democrates and 6 independents for a total of 19.
What is the probability? 
19/39

Correct!

it would be 19 over 39. Good luck~!:)
Respond to this Question
Similar Questions

math
I was given a table that showed a simple random sample of adults' age and annual income living in suburb of a large city. a) What is the probability that a person chosen at random from those in this sample will be the 3145 age category? 
Math
At Chaniel's school, one cafeteria helper is chosen from each class by a random drawing. In Chaniel's class, the probability of the chosen person being taller that five feet is 1/5. Find the odds in favor of the chosen person being … 
probability
Suppose 1 person is picked at random from this group of dog owners. The probability that the person chosen is at least 50 years old and has at least 1 dog equals 
math
At a political rally there are 20 republicians, 13 democrates, 6 independents. If a person is chosen at random what is the probability that a) the person is either a democrate or and independent? 
conditional probability
Among a group of people, 10% are from NYC and 90% are not. All people from NYC are under 18 years old, and 60% of those not from NYC are also under 18 years old. One person is chosen at random, and he or she is under 18. What is the … 
Probability
Among a group of people, 10% are from NYC and 90% are not. All people from NYC are under 18 years old, and 60% of those not from NYC are also under 18 years old. One person is chosen at random, and he or she is under 18. What is the … 
Statistics
*Give all probabilities to two decimal places. Three daily newspapers are published in a large city. Suppose we have the following facts about the people in the city: 60% read Newspaper A. 34% read Newspaper C. 72% read Newspaper A … 
STATISTIC***HELP
Show all your work. Indicate clearly the methods you use because you will be graded on the correctness of your methods as well as on the accuracy of your results and explanation. A simple random sample of adults living in a suburb … 
statistic****help*****
Show all your work. Indicate clearly the methods you use because you will be graded on the correctness of your methods as well as on the accuracy of your results and explanation. A simple random sample of adults living in a suburb … 
math (ms sue)
Suppose that one voter in the 2010 UK General Election was selected at random. The probability that the person voted for the Conservative Party was 0.36, the probability that the person voted for the Labour Party was 0.29, and the …