The number of motor vehicle deaths in the US was 49,391 in 1988 and 46,300 in 1990. If the trend stays the same, what will be the number of deaths in 2005?
Thank you for any help!!!
49391
-46300 -3091=43391
To predict the number of motor vehicle deaths in 2005 based on the given trend, we can calculate the average change per year and then apply it to the difference between 1988 and 2005.
1. Calculate the average change per year:
- Subtract the number of deaths in 1990 from the number of deaths in 1988: 49,391 - 46,300 = 3,091.
- Divide the difference by the number of years between 1988 and 1990: 3,091 / 2 = 1,545.5.
- This means, on average, the number of deaths decreased by 1,545.5 per year.
2. Determine the difference in years between 1988 and 2005:
- Subtract 1988 from 2005: 2005 - 1988 = 17 years.
3. Apply the average change to the difference in years:
- Multiply the average change per year by the difference in years: 1,545.5 * 17 = 26,271.5.
- This means, if the trend stays the same, the number of deaths in 2005 would be 26,271.5 less than in 1988.
4. Calculate the predicted number of deaths in 2005:
- Subtract the calculated value from the number of deaths in 1988: 49,391 - 26,271.5 = 23,119.5.
- Rounded to the nearest whole number, the predicted number of motor vehicle deaths in 2005 would be approximately 23,120.
Please note that this prediction assumes the trend remains constant and doesn't consider any external factors that may have affected motor vehicle deaths over time.