Subjects statistics

Birth Rate Percentage 111688

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1. **Problem Statement:** Given a country with a birth rate of 15 per 1,000 population, find the percentage of countries that have a birth rate equal to or greater than 15. 2. **Understanding the Problem:** We need to determine the proportion of countries whose birth rate is $\geq 15$ per 1,000 population from the given birth rate data. 3. **Data Extraction:** From the birth rate data provided: 34, 17, 25, 37, 19, 19, 27, 45, 24, 19, 15, 31, 24, 22, 32, 12, 13, 16, 18, 14, 12, 16, 18, 27, 10, 10, 15, 15, 20, 22, 16, 10, 17, 18, 35, 35, 15, 17, 20, 18, 19, 13, 13, 13, 18, 30, 20, 32, 22, 15, 31, 28, 40, 43, 31, 44, 34, 24, 38, 32, 50, 33, 11, 28, 55, 42 4. **Step 1: Count total countries** Total number of birth rate entries $= n = 66$ 5. **Step 2: Count countries with birth rate $\geq 15$** Count all values $\geq 15$: Values $\geq 15$ are: 34, 17, 25, 37, 19, 19, 27, 45, 24, 19, 15, 31, 24, 22, 32, 16, 18, 16, 18, 27, 15, 15, 20, 22, 16, 17, 18, 35, 35, 15, 17, 20, 18, 19, 18, 30, 20, 32, 22, 15, 31, 28, 40, 43, 31, 44, 34, 24, 38, 32, 50, 33, 28, 55, 42 Count these values: Number of countries with birth rate $\geq 15 = 53$ 6. **Step 3: Calculate percentage** $$\text{Percentage} = \left(\frac{\text{Number of countries with birth rate } \geq 15}{\text{Total number of countries}}\right) \times 100$$ $$= \left(\frac{53}{66}\right) \times 100$$ 7. **Step 4: Simplify fraction** $$= \cancel{\frac{53}{66}} \times 100$$ Since 53 and 66 have no common factors, fraction remains $\frac{53}{66}$. 8. **Step 5: Calculate decimal and percentage** $$= 0.8030 \times 100 = 80.30\%$$ **Final Answer:** Approximately 80.30% of the countries have a birth rate equal to or greater than 15 per 1,000 population.