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Probability and statistics in algebra 1 and algebra 2

Probability and statistics in algebra 1 and algebra 2. Jeanette Trageser. Summerville High School. In this session, participants will. Find common statistics and understand why it is necessary to have several different measures of center and spread

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Probability and statistics in algebra 1 and algebra 2

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  1. Probability and statistics in algebra 1 and algebra 2 Jeanette Trageser Summerville High School

  2. In this session, participants will • Find common statistics and understand why it is necessary to have several different measures of center and spread • Explain why the shape of a distribution is important for analysis • Choose the correct graph to complement a set of data • Explore unions, intersections and complements • Discover how tables, trees and formulas are related • Investigate the concept of independence and how it relates to conditional probability

  3. Given the data set… • What statistics can we find? Using our calculators, we can find mean, standard deviation (for samples or populations), sample size, minimum, Q1, med, Q3, maximum • What common statistics are not given? Mode, variance, range and inter-quartile range

  4. Why do we need 2 measures of center? The measure of center tells us the measure of what we will consider average. How did the average student score? How tall is the average banana tree? How heavy is the average SUV? Where do we find this measure?

  5. Why do we need several measures of spread? • Range – distance from beginning to end of the data set (maximum – minimum) • Standard deviation – an average of the deviations from the mean (approximately 70% of the data lies within 1 standard deviation of the mean) • Inter-quartile range – spread of the middle 50% of the data (Q3 – Q1)

  6. Why is the shape of the data important?

  7. Session EvaluationParticipants are asked to complete a session evaluation for each session attended. Credit will added following evaluation completion. For each question, use 1=strongly disagree, 2=disagree, 3=agree, 4=strongly agree. Your responses will assist us in planning future professional development in Dorchester School District Two. • The instructor was well prepared for the workshop. • The materials for the workshop were appropriate. • The concepts presented were appropriate to my job. • I will benefit from attending this session. • I would recommend this training to others.

  8. Contact Information Presenter Name: Jeanette Trageser Presenter Title: Math Teacher with Masters Degree in Statistics and self-proclaimed know-it-all Presenter Email Address:Jtrageser@dorchester2.k12.sc.us

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