Suppose that in a certain county 37% of voters are registered as Democrats, 29% as Republicans, 7% as Green party, and the rest are considered Independents. You conduct a poll by calling registered voters in the county at random. What is the probability that the first call will be to either a Democrat or a Republican?

Step-by-step explanation:

GIVEN: Suppose that in a certain county of voters are registered as Democrats, as Republicans, as Green party, and the rest are considered Independents. You conduct a poll by calling registered voters in the county at random.

TO FIND: Probability that the first call will be to either a Democrat or a Republican.

SOLUTION:

Lets total population of county be .

voters registered as Democrats

voters registered as Republicans

voters registered as Green party

Probability that first call will be to Democrats

Probability that first call will be to Republican

probability that the first call will be to either a Democrat or a Republican

Hence the probability that the first call will be to either a Democrat or a Republican is

an altitude of 15,000 feet

step-by-step explanation: