Sniper Mode: Data Analysis

1. Measures of Central Tendency

• Mean (Average): Sum of Observations / No. of Observations.
  • x̄ = ∑x / N.
• Median: Middle value when arranged in order.
  • If N is Odd: (N+1)/2 th term.
  • If N is Even: Average of (N/2)th and (N/2 + 1)th term.
• Mode: Most frequent value (Occurs max times).

2. Measures of Dispersion

• Range: Max Value - Min Value.
• Mean Deviation: Average deviation from Mean.

3. Sniper Relationships

• Empirical Formula (V. Imp):
  • Mode = 3 Median - 2 Mean.
  • Memorize: 3 Me - 2 Me.

4. Graphical Representation

• Histogram: For Continuous frequency distribution (Rectangles join). Represents MODE.
• Bar Graph: Gaps between bars.
• Pie Chart: Degree = (Value/Total) * 360.
• Ogive: Cumulative frequency curve. Intersection gives MEDIAN.