Calculate the average age of the crew. Round to the nearest year.
Answer (2)
Sum the ages of all crew members: 19 + 19 + 21 + 24 + 25 + 31 + 47 + 51 + 53 = 290 .
Divide the sum by the number of crew members to find the average age: 9 290 = 32.222... .
Round the average age to the nearest whole number: 32.222... ≈ 32 .
The average age of the crew is 32 years.
Explanation
Understanding the Problem We are given the ages of a crew of workers and asked to calculate the average age, rounding to the nearest year. The ages are: 19, 19, 21, 24, 25, 31, 47, 51, and 53. There are 9 crew members in total.
Calculating the Sum of Ages To find the average age, we need to sum up all the ages and then divide by the number of crew members. So, we will add the ages together: 19 + 19 + 21 + 24 + 25 + 31 + 47 + 51 + 53 = 290 .
Finding the Average Age Now, we divide the sum of the ages by the number of crew members, which is 9: 9 290 = 32.222... .
Rounding to the Nearest Year Finally, we round the average age to the nearest whole number. Since 32.222... is closer to 32 than to 33, we round down to 32.
Final Answer Therefore, the average age of the crew, rounded to the nearest year, is 32 years.
Examples
Calculating the average age of a group is a common task in many real-world scenarios. For example, a company might calculate the average age of its employees to understand workforce demographics. Similarly, schools might calculate the average age of students in a particular grade. This information can be useful for planning and resource allocation, such as tailoring training programs or educational materials to the specific age group.
To find the average age of the crew, we calculated the sum of their ages, which is 290. Dividing this by the number of crew members, which is 9, gives us an average of approximately 32.222, which we round to 32 years.
;
