8. What was the average number of children taking swim lessons from 1990 to 1995?
250
308
385
450
1850
To find the average number of children taking swim lessons from 1990 to 1995, you need to calculate the sum of the number of children for each year and then divide it by the number of years.
Average number of children = (Number of children in 1990 + Number of children in 1991 + Number of children in 1992 + Number of children in 1993 + Number of children in 1994 + Number of children in 1995) / 6
Based on the given options, we can calculate the average using each option:
Option 1: (250 + 308 + 385 + 450 + 1850) / 6 = 324.67 (approx.)
Option 2: (308 + 385 + 450 + 1850) / 5 = 597.6 (approx.)
Option 3: (385 + 450 + 1850) / 4 = 773.75 (approx.)
Option 4: (450 + 1850) / 3 = 766.67 (approx.)
Option 5: 1850 / 1 = 1850
Therefore, the average number of children taking swim lessons from 1990 to 1995 is approximately 324.67, which corresponds to option 1.
To find the average number of children taking swim lessons from 1990 to 1995, you need to add up the number of children for each year and then divide the sum by the total number of years.
Let's calculate:
Number of children taking swim lessons in 1990: 250
Number of children taking swim lessons in 1991: 308
Number of children taking swim lessons in 1992: 385
Number of children taking swim lessons in 1993: 450
Number of children taking swim lessons in 1994: 1850
To find the sum, add up all the numbers: 250 + 308 + 385 + 450 + 1850 = 3243.
Now, we need to find the total number of years from 1990 to 1995, which is 6 years.
To calculate the average, divide the sum (3243) by the total number of years (6): 3243 / 6 = 540.5.
Therefore, the average number of children taking swim lessons from 1990 to 1995 is approximately 540.5.
To find the average number of children taking swim lessons from 1990 to 1995, you need to calculate the sum of the number of children for each year and divide it by the number of years. Here is the step-by-step process:
1. Add the number of children for each year: 250 + 308 + 385 + 450 + 1850 = 3243
2. Divide the sum by the number of years (1995 - 1990 + 1 = 6 years): 3243 / 6 = 540.5
Therefore, the average number of children taking swim lessons from 1990 to 1995 is approximately 540.5.