Explanations:The death rate in a region is a critical demographic indicator that reflects the number of deaths per unit of population, typically expressed per 1,000 people. To understand the percentage change in death rate between two years, we need to follow a systematic approach. The percentage change is calculated using the formula:
\[
\text{Percentage Change} = \left( \frac{\text{New Value} - \text{Old Value}}{\text{Old Value}} \right) \times 100
\]
In this context, the "Old Value" is the death rate in 1967, and the "New Value" is the death rate in the following year. The question states that the death rate in 1967 was 34% higher than the death rate in the following year. This means that the death rate in 1967 was 134% of the death rate in the following year.
To illustrate this with an example, let's assume the death rate in the following year (1968) was \( D \) per 1,000 people. Then, the death rate in 1967 would be \( 1.34D \) per 1,000 people. The difference in death rates between 1967 and 1968 is \( 1.34D - D = 0.34D \). The percentage increase is calculated as:
\[
\text{Percentage Increase} = \left( \frac{0.34D}{D} \right) \times 100 = 34\%
\]
This calculation confirms that the death rate in 1967 was indeed 34% higher than the death rate in the following year. Understanding this concept is crucial for interpreting demographic data and making informed decisions based on such data.
It is important to note that demographic data can be influenced by various factors such as healthcare improvements, economic conditions, and social policies. Therefore, when analyzing such data, it is essential to consider the broader context and potential influencing factors.