The graph shows the estimated year-end population for the 3 most populous territories in Nation X in 5 selected years....

Owning the Dataset

Table 1: Text Analysis

Table 2: Chart Analysis

Key Insights

Territory A remains the largest throughout, while Territory C grows the fastest in percentage terms (about 57% growth from 1990 to 2010). The top 3 territories' combined populations in 2010 (17.4 million) represent about 77% of Nation X's total population. All three territories show consistent, steady growth with no reversals, and Territory C accounts for nearly one-third of the nationwide population increase over the period.

Step-by-Step Solution

Question 1: Territory C's Contribution to National Population Growth

Complete Statement:

The increase in the estimated year-end population of Territory C from 1990 to 2010 accounts for approximately ______ % of the increase in the estimated year-end population of Nation X over the same period.

Breaking Down the Statement

• Statement Breakdown 1:
  • Key Phrase: increase in the estimated year-end population of Territory C from 1990 to 2010
    • Meaning: Determine how much Territory C's population grew between 1990 and 2010.
    • Relation to Chart: Find values for Territory C in 1990 and 2010, then subtract.
    • Important Implications: This gives the absolute increase in population for one territory.

• Statement Breakdown 2:
  • Key Phrase: accounts for approximately ______ % of the increase in the estimated year-end population of Nation X
    • Meaning: Express Territory C's increase as a percentage of the national increase.
    • Relation to Chart: Find Nation X's total population in 1990 and 2010, calculate the increase, and figure out the proportion from Territory C.
    • Important Implications: Shows how much one region contributed to the country's total population growth.

• What is needed: The percentage of Nation X's total population growth between 1990 and 2010 that came from Territory C.

Solution:

• Condensed Solution Implementation:
  Calculate the population increase for Territory C and for Nation X, then divide Territory C's increase by the national increase and convert to a percentage.
• Necessary Data points:
  Territory C (1990): 2,900,000; Territory C (2010): 4,550,000; Nation X (1990): 17,000,000; Nation X (2010): 22,500,000.
  • Calculations Estimations:
    Territory C increase: \(\mathrm{4,550,000 - 2,900,000 = 1,650,000}\). Nation X increase: \(\mathrm{22,500,000 - 17,000,000 = 5,500,000}\). Percentage: \(\mathrm{1,650,000 / 5,500,000 = 0.3}\) or 30%.
  • Comparison to Answer Choices:
    Choices are: 20, 30, 40, 60. Our value is 30%.

FINAL ANSWER Blank 1: 30

Question 2: Combined Population of Territories as a Percentage of Nation X

Complete Statement:

In 2010, the estimated total year-end population of the 3 territories was ______ of the estimated year-end population of Nation X.

Breaking Down the Statement

• Statement Breakdown 1:
  • Key Phrase: estimated total year-end population of the 3 territories
    • Meaning: Sum the populations of Territories A, B, and C for 2010.
    • Relation to Chart: Locate 2010 values for each territory and add together.

• Statement Breakdown 2:
  • Key Phrase: of the estimated year-end population of Nation X
    • Meaning: Express the total of the three territories as a percentage of Nation X's total in 2010.
    • Relation to Chart: Find the national total for 2010 and use in percentage calculation.

• What is needed: What percent of Nation X's population was living in these three territories in 2010.

Solution:

• Condensed Solution Implementation:
  Add the 2010 populations of the three territories, divide by the national population for 2010, and express as a percentage.
• Necessary Data points:
  Territory A (2010): 7,300,000; Territory B (2010): 5,550,000; Territory C (2010): 4,550,000; Nation X (2010): 22,500,000.
  • Calculations Estimations:
    Sum of three territories: \(\mathrm{7,300,000 + 5,550,000 + 4,550,000 = 17,400,000}\). Percentage: \(\mathrm{17,400,000 / 22,500,000 ≈ 0.773}\) or 77.3%.
  • Comparison to Answer Choices:
    Given choices: Between 70% and 80%, Between 80% and 90%, Over 90%. 77.3% is between 70% and 80%.

FINAL ANSWER Blank 2: Between 70% and 80%

Summary

For question 1, we compared Territory C's growth to total national growth and got 30%. For question 2, we summed all territories' 2010 populations and found they account for between 70% and 80% of the nation's population. Both solutions involved careful reading of the data and straightforward percentage calculations.

Question Independence Analysis

The blanks are independent: one is about Territory C's share of population growth over 20 years, the other about all three territories' share of the total population in 2010. Solving one does not require the answer to the other.