Use what you have learned about mutually inclusive and exclusive events. Apply the formula for calculating the probability of events A or B. There are four presidential candidates in a country. A street survey was conducted asking 2,500 registered voters which candidate they will vote for in the coming election. The table summarizes the results of the survey. Presidential Candidates Number of Supporters Candidate 1 250 Candidate 2 1,250 Candidate 3 450 Candidate 4 550 Part 1: What is the probability of randomly selecting a person who will vote for Candidate 1 or 2? (2 points) Responses 2502500 250 over 2500 15002500 1500 over 2500 10002500 1000 over 2500 12502500 1250 over 2500

Question

Use what you have learned about mutually inclusive and exclusive events. Apply the formula for calculating the probability of events A or B. There are four presidential candidates in a country. A street survey was conducted asking 2,500 registered voters which candidate they will vote for in the coming election. The table summarizes the results of the survey. Presidential Candidates Number of Supporters Candidate 1 250 Candidate 2 1,250 Candidate 3 450 Candidate 4 550 Part 1: What is the probability of randomly selecting a person who will vote for Candidate 1 or 2? (2 points) Responses 2502500 250 over 2500 15002500 1500 over 2500 10002500 1000 over 2500 12502500 1250 over 2500

Answer 1

To calculate the probability of randomly selecting a person who will vote for Candidate 1 or Candidate 2, we need to add the number of supporters for Candidate 1 and Candidate 2 and then divide by the total number of registered voters surveyed.

Probability = (Number of supporters for Candidate 1 + Number of supporters for Candidate 2) / Total number of registered voters surveyed
Probability = (250 + 1250) / 2500
Probability = 1500 / 2500
Probability = 0.6

Therefore, the probability of randomly selecting a person who will vote for Candidate 1 or Candidate 2 is 0.6 or 60%.