The graph shows the estimated total elephant population in each of 4 regions of India for each of 4 different...

Owning The Dataset

Table 1: Text Analysis

Table 2: Chart Analysis

Key Insights

• The northeastern region is the only one with a consistent decline in estimated elephant population from 1993 (\(\mathrm{11,000}\)) to 2007 (\(\mathrm{8,700}\)), a decrease of roughly \(\mathrm{20\%}\).
• The southern region has the highest elephant population throughout and shows steady growth, reaching \(\mathrm{14,000}\) in 2007.
• East-central and northern regions start lower and both gradually increase; no other region shows a decline.
• Thus, the dataset highlights a geographic disparity: only the northeastern region is facing a shrinking elephant population over the period shown.

Step-by-Step Solution

Question 1: Identifying the Region with Decreasing Population

Complete Statement:

From 1993 to 2007, the estimated total elephant population in the [BLANK 1] region decreased by [BLANK 2] percent, to the nearest 10 percent.

Breaking Down the Statement

• Statement Breakdown 1:
  • Key Phrase: From 1993 to 2007
  • Meaning: This specifies the time range to consider: compare values from 1993 and 2007.
  • Relation to Chart: Locate and compare the first and last data points (bars) for each region.
  • Important Implications: Only the 1993 and 2007 data are relevant; ignore other years.
• Statement Breakdown 2:
  • Key Phrase: estimated total elephant population...decreased
  • Meaning: Find a region where the population in 2007 is lower than in 1993.
  • Relation to Chart: Look for a region with a last bar lower than the first bar.
  • Important Implications: Only regions with a decrease in population can be correct.
• What is needed: Which of the listed regions showed a decrease in estimated elephant population from 1993 to 2007.

Solution:

• Condensed Solution Implementation:
  Check the population changes for each region from 1993 to 2007 to determine where there was a decrease.
• Necessary Data points:
  East-central: \(\mathrm{2,200}\) (1993) to \(\mathrm{2,600}\) (2007); Northeastern: \(\mathrm{11,000}\) (1993) to \(\mathrm{8,700}\) (2007); Northern: \(\mathrm{900}\) (1993) to \(\mathrm{1,800}\) (2007); Southern: \(\mathrm{11,200}\) (1993) to \(\mathrm{14,000}\) (2007).
• Calculations Estimations:
  Compare each region's population in 1993 and 2007. Only the northeastern region shows a decrease, from \(\mathrm{11,000}\) to \(\mathrm{8,700}\).
• Comparison to Answer Choices:
  Among choices, only 'northeastern' matches the decrease condition.

FINAL ANSWER Blank 1: northeastern

Question 2: Calculating the Percentage Decrease

Complete Statement:

From 1993 to 2007, the estimated total elephant population in the northeastern region decreased by [BLANK 2] percent, to the nearest 10 percent.

Breaking Down the Statement

• Statement Breakdown 1:
  • Key Phrase: decreased by [BLANK 2] percent
  • Meaning: Find the percent decrease from the 1993 value to the 2007 value.
  • Relation to Chart: Use northeastern region data for 1993 and 2007.
• Statement Breakdown 2:
  • Key Phrase: to the nearest 10 percent
  • Meaning: Round the calculated percent decrease to the nearest \(\mathrm{10\%}\).
  • Relation to Chart: No exact value needed; approximate rounding is acceptable.
• What is needed: The percent decrease in the northeastern region's elephant population from 1993 to 2007, rounded to the nearest \(\mathrm{10\%}\).

Solution:

• Condensed Solution Implementation:
  Calculate percent decrease using the formula: \(\mathrm{\frac{original - new}{original} \times 100\%}\).
• Necessary Data points:
  Northeastern region: \(\mathrm{11,000}\) (1993); \(\mathrm{8,700}\) (2007).
• Calculations Estimations:
  Decrease = \(\mathrm{11,000 - 8,700 = 2,300}\). Percent decrease = \(\mathrm{2,300 / 11,000 ≈ 0.209 ≈ 21\%}\). Rounded to nearest \(\mathrm{10\%}\), answer is \(\mathrm{20\%}\).
• Comparison to Answer Choices:
  Possible choices: 20, 30, 40. \(\mathrm{21\%}\) rounds to \(\mathrm{20\%}\).

FINAL ANSWER Blank 2: 20

Summary

The northeastern region is the only one where the estimated elephant population decreased from 1993 to 2007. The population dropped from \(\mathrm{11,000}\) to \(\mathrm{8,700}\), a decrease of about \(\mathrm{21\%}\), which rounds to \(\mathrm{20\%}\) to the nearest 10 percent.

Question Independence Analysis

The two questions are dependent: You must identify the correct region in Blank 1 before you can calculate the percent decrease for Blank 2.