Mutually Inclusive and Exclusive Events – Portfolio.
Use what you have learned about mutually inclusive and exclusive events. Apply the formula for calculating the probability of events A or B.
Question 1
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. In 2 sentences.
Presidential Candidates Number of Supporters
Candidate 1 250
Candidate 2 1,250
Candidate 3 450
Candidate 4 550
1. What is the probability of randomly selecting a person who will vote for Candidate 1 or 2? in 1 sentence.
2. If 1,000 more voters are surveyed, how many of them will likely prefer Candidate 3 or 4? Explain your answer. in 1 sentences
1. The probability of randomly selecting a person who will vote for Candidate 1 or 2 is (250 + 1250) / 2500 = 0.6 or 60%.
2. If 1,000 more voters are surveyed, we can expect approximately 40% of them to prefer Candidate 3 or 4, based on the current distribution of supporters among Candidates 3 and 4.