101 A Mean, Median, Mode, Range Quartiles Lesson
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This document provides instructions for using a calculator to determine statistical measures like mean, median, mode, minimum, maximum, range, and quartiles from a data set. It defines key vocabulary and outlines the step-by-step process of entering data into a list, using menu options to calculate statistics, and interpreting the results. Specific directions are given for finding measures using the 1-Var and SortA functions on TI-83/84 calculators.
101 A Mean, Median, Mode, Range Quartiles Lesson
- 1. CALCULATOR LESSON Mean, Median, Mode, Minimum, Maximum, Range, & Quartiles Algebra 1.1 Bitsy Griffin
- 2. Essential Question How do I use my calculator to determine mean, median, mode, range and quartiles? Algebra 1.1 Bitsy Griffin
- 3. Vocabulary Minimum : Lowest value in data set (lower extreme) Shown on Calculator as Min Maximum: Largest value in data set (Upper extreme) Shown on Calculator as Max Algebra 1.1 Bitsy Griffin
- 4. Vocabulary Range: Difference between max & min values Caution: Min and Max are not the first and last values! (you have to order the values first!) Algebra 1.1 Bitsy Griffin
- 5. Vocabulary Quartiles: Divides data into four sets (after ordering from least to greatest) Q1 – Quartile 1 (Lower quartile) Med – Quartile 2 (Median) Q3 – Quartile 3 (Upper quartile) InterQuartile Range Middle 50% (falls between Q1 & Q3) Algebra 1.1 Bitsy Griffin
- 6. FOR FINDING MEAN, MEDIAN, QUARTILES, RANGE ON CALCULATOR (TI83/84) Tech Manual Algebra 1.1 Bitsy Griffin
- 7. Steps Enter a list Hit Stat key Choose edit Enter data in list 1 (push enter after each value) Algebra 1.1 Bitsy Griffin
- 8. Steps Using the Info Hit Stat Choose Calc Choose 1: 1-Var Push Enter twice Algebra 1.1 Bitsy Griffin
- 9. 1-Var Stats Mean Top number listed Scroll down for everything else. They are all listed Do the appropriate math to find the range. Algebra 1.1 Bitsy Griffin
- 10. Steps to find Mode Hit the Stat key Choose 2: SortA( Hit 2 nd , then hit #1 This enters L1 to be sorted Hit Enter Calculator shows Done The list has been put in order. To look at the ordered list: Hit Stat -- Edit Find mode in list by comparing the numbers of each piece of data. Algebra 1.1 Bitsy Griffin
- 11. Clear old data Clearing the old data out is important so you can start new lists. Go to the List Steps: Hit the up arrow Hit Clear Hit Enter Algebra 1.1 Bitsy Griffin
- 12. Revisit Essential Question How do I use my calculator to determine mean, median, mode, range and quartiles? Algebra 1.1 Bitsy Griffin
Editor's Notes
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