Texas Instruments -84 Plus, Manual Book

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Chapter 12: Statistics 273
Chapter 12:
Chapter 12: Chapter 12:
Chapter 12:
Statistics
Statistics Statistics
Statistics
Getting Started: Pendulum Lengths and Periods Getting Started: Pendulum Lengths and Periods Getting Started: Pendulum Lengths and Periods Getting Started: Pendulum Lengths and Periods
Getting Started is a fast-paced introduction. Read the chapter for details.
A group of students is attempting to determine the mathematical relationship between
the length of a pendulum and its period (one complete swing of a pendulum). The group
makes a simple pendulum from string and washers and then suspends it from the
ceiling. They record the pendulum’s period for each of 12 string lengths.*
*This example is quoted and adapted from Contemporary Precalculus Through Applications , by
the North Carolina School of Science and Mathematics, by permission of Janson Publications,
Inc., Dedham, MA. 1-800-322-MATH. © 1992. All rights reserved.
Length (cm) Time (sec) Length (cm) Time (sec)
6.5 0.51 24.4 1.01
11.0 0.68 26.6 1.08
13.2 0.73 30.5 1.13
15.0 0.79 34.3 1.26
18.0 0.88 37.6 1.28
23.1 0.99 41.5 1.32
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