An online retailer had a sale that lasted 5 days. Approximately how many people visted the site during the sale? Assume that people who visited on more than one day were only counted once.
Day 1 20,000
Day 2 25,000
Day 3 30,000
Day 4 25,000
Day 5 20,000
Incomplete information
To find the approximate number of unique visitors to the online retailer's site during the 5-day sale, you need to add up the visitor counts for each day and then eliminate any duplicates.
First, let's add up the visitor counts for each day:
Day 1: 20,000
Day 2: 25,000
Day 3: 30,000
Day 4: 25,000
Day 5: 20,000
Adding these numbers together:
20,000 + 25,000 + 30,000 + 25,000 + 20,000 = 120,000
Now, to eliminate duplicates and get the approximate number of unique visitors, we can use a simple equation:
Approximate number of unique visitors = (Total number of visitors - Total number of duplicates)
Since the question states that people who visited on more than one day were only counted once, we need to determine the number of duplicates in this case.
To do that, we can subtract the count of each visitor's subsequent appearance from the total number of visits:
20,000 + (25,000 - 20,000) + (30,000 - 25,000) + (25,000 - 20,000) + (20,000 - 0) = 20,000 + 5,000 + 5,000 + 5,000 + 20,000 = 55,000
Now we can calculate the approximate number of unique visitors:
Approximate number of unique visitors = Total number of visitors - Total number of duplicates
Approximate number of unique visitors = 120,000 - 55,000
Approximate number of unique visitors = 65,000
Therefore, approximately 65,000 people visited the online retailer's site during the 5-day sale.