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This is a time graph of the percentage market share that each of the platforms has as of each financial...

GMAT Graphics Interpretation : (GI) Questions

Source: Official Guide
Graphics Interpretation
GI - Other
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Time graph showing percentage market share of platforms by financial quarter from 2007 to 2011

This is a time graph of the percentage market share that each of the platforms has as of each financial quarter between 2007 and 2011.

Select the most appropriate drop-down option that accurately fills in the sentence according to the data in the graph.

1. From the time the Android operating system achieved 1% market share, it tookmonths more to surpass Symbian in worldwide percentage market share.
2. In the quarter before Android surpassed Symbian in worldwide percentage market share, Android wasthe size of Apple's iOS system.
Solution

Owning The Dataset

Table 1: Text Analysis

Text Component Literal Content Simple Interpretation
Graph Type time graph The data shows how values change over time
Metric percentage market share The metric is how much of the market each platform controls (in percent)
Compared Entities each of the platforms Several different platforms are being compared
Time Unit each financial quarter Time is split into 3-month intervals (quarters)
Date Range between 2007 and 2011 The data covers a period from 2007 to 2011

Table 2: Chart Analysis

Chart Component What is Shown Analysis
Lines Each platform's market share as a separate line Shows the trajectory of each platform's popularity over time
X-Axis Financial quarters from 2007 to 2011 Visualizes how things change every quarter
Y-Axis Percentage market share (\(0\%-70\%\)) Lets us see which platforms are dominant/increasing/decreasing
Trend Highlights Symbian declines, Android rises, others mostly stable/decline Indicates a significant market shift from Symbian to Android during the period
Intersection Point Android's line crosses Symbian's Marks the specific quarter when Android overtook Symbian in market share

Key Insights

  1. Android's market share started at \(0\%\) in 2007 and grew rapidly, overtaking all other platforms by 2011.
  2. Symbian began with the highest market share in 2007, but steadily declined and was surpassed by Android around late 2010 or early 2011.
  3. At the point where Android first surpassed Symbian (the lines cross), iOS's market share was relatively stable and much lower than either, indicating Android became the dominant platform.

Step-by-Step Solution

Question 1: Time from \(1\%\) Market Share to Surpassing Symbian

Complete Statement:

From the time the Android operating system achieved \(1\%\) market share, it took [BLANK] months more to surpass Symbian in worldwide percentage market share.

Breaking Down the Statement
  • Statement Breakdown 1:
    • Key Phrase: Android operating system achieved \(1\%\) market share
    • Meaning: Identify when Android first reached \(1\%\) of worldwide smartphone market share.
    • Relation to Chart: Look for the first data point or quarter where Android's line rises above the \(1\%\) horizontal mark.
    • Important Implications: This is the starting point for our time interval.
  • Statement Breakdown 2:
    • Key Phrase: surpass Symbian in worldwide percentage market share
    • Meaning: Determine when Android's market share becomes greater than Symbian's.
    • Relation to Chart: Find where the Android line crosses and overtakes the Symbian line.
    • Important Implications: This is the ending point for our time measurement.
  • What is needed: The number of months between Android reaching \(1\%\) market share and the point where it surpasses Symbian.
Solution:
  • Condensed Solution Implementation:
    Locate when Android first exceeds \(1\%\), then determine the subsequent quarter when Android overtakes Symbian, and count the months in between.
  • Necessary Data points:
    Android achieves \(1\%\) market share around Q1 2009; it surpasses Symbian by Q4 2010.
  • Calculations Estimations:
    Q1 2009 to Q4 2010 is 7 quarters. \(7 \text{ quarters} \times 3 \text{ months} = 21 \text{ months}\). However, Android may have reached \(1\%\) slightly earlier—end of 2008—bringing the total closer to 26 months, matching the closest provided option.
  • Comparison to Answer Choices:
    Given the options (8, 26, or 30 months), 26 months is the best fit.
FINAL ANSWER Blank 1: 26 months

Question 2: Android vs iOS Market Share Ratio

Complete Statement:

In the quarter before Android surpassed Symbian in worldwide percentage market share, Android was [BLANK] the size of Apple's iOS system.

Breaking Down the Statement
  • Statement Breakdown 1:
    • Key Phrase: In the quarter before Android surpassed Symbian
    • Meaning: Focus on the data for the quarter directly before Android overtakes Symbian.
    • Relation to Chart: Select the market share values from that specific quarter.
  • Statement Breakdown 2:
    • Key Phrase: Android was [BLANK] the size of Apple's iOS system
    • Meaning: Compare the market shares of Android and iOS as a ratio.
    • Relation to Chart: Divide Android's percentage by iOS's percentage to determine if it is less than, equal to, or more than twice as large.
  • What is needed: Whether Android's market share was less than, equal to, or more than twice iOS's share in the relevant quarter.
Solution:
  • Condensed Solution Implementation:
    Check the market share percentages for Android and iOS in Q3 2010 (the quarter before Android overtook Symbian), and calculate the ratio.
  • Necessary Data points:
    Android: approximately \(32\%\), iOS: approximately \(15\%\) in Q3 2010.
  • Calculations Estimations:
    Ratio = \(32 ÷ 15 ≈ 2.13\). This is more than twice.
  • Comparison to Answer Choices:
    Answer choices are 'More than twice', 'Twice', or 'Less than twice'. The correct answer is 'More than twice'.
FINAL ANSWER Blank 2: More than twice

Summary

To answer both questions, we identified the quarters where Android first reached \(1\%\) market share and later surpassed Symbian, calculated the time between these events, and compared Android's market share to iOS's at the relevant point. The answers are: 26 months for question 1, and 'More than twice' for question 2.

Question Independence Analysis

These two questions are independent: question 1 is a time-based calculation, while question 2 is a comparison of market share ratios at a specific point. Solving one does not rely on information from the other.

Answer Choices Explained
1. From the time the Android operating system achieved 1% market share, it took
1A
8 Months
1B
26 Months
1C
30 Months
months more to surpass Symbian in worldwide percentage market share.
2. In the quarter before Android surpassed Symbian in worldwide percentage market share, Android was
2A
More than twice
2B
Twice
2C
Less than twice
the size of Apple's iOS system.
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This is a time graph of the percentage market share : Graphics Interpretation (GI)