Data Variability Measures
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Data Variability Measures
📊 Part 1: Understanding Range
a) Maximum height: _________ cm
b) Minimum height: _________ cm
c) Range = Maximum - Minimum = _________
Team A: 145, 167, 152, 159, 148, 161
Team B: 120, 180, 135, 175, 140, 170
a) Range for Team A: _________
b) Range for Team B: _________
c) Which team has more consistent scores? Explain:
📈 Part 2: Standard Deviation Concepts
Using a calculator or spreadsheet, find:
a) Mean temperature: _________ °C
b) Standard deviation: _________ °C (to 1 decimal place)
City X: Standard deviation = 2.1°C
City Y: Standard deviation = 8.5°C
Which city has more variable weather? _________
Explain your reasoning:
🎯 Part 3: Comparing Variability
Class A: Mean = 75%, Range = 30%, Standard deviation = 8.2%
Class B: Mean = 75%, Range = 18%, Standard deviation = 5.1%
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