Measures of central tendency
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This document discusses measures of central tendency and uses the scores of 28, 18, 24, 22, 18 to demonstrate how to calculate the median, mean, mode, and range. It defines median as the middle number when values are ordered from lowest to highest. Mean is calculated by adding all values and dividing by the total count. Mode is the number with the most occurrences. Range is found by subtracting the minimum from the maximum value.
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This document contains a lesson plan on measures of central tendency of ungrouped data for 7th grade mathematics. The lesson plan defines mean, median, and mode, and provides examples of calculating each. It includes an activity that challenges students to solve problems involving finding the mean, median, and mode of various data sets. The activity is meant to assess students' understanding of applying these measures of central tendency to real-world scenarios. The lesson concludes by having students practice defining and calculating measures of central tendency, and applying them to sample data sets and a real-life example.Mean-Median-Mode-Range-Demonstration.pptx
Mean-Median-Mode-Range-Demonstration.pptxssuserb9172b1
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This document provides demonstrations of calculating the mean, median, mode, and range for various data sets. It explains how to find each average value and compares the strengths and weaknesses of each. The mean averages all values, the median ignores outliers, and the mode represents non-numerical or categorical data. Examples are worked through step-by-step and the key is to order the data before analyzing it using these different averaging methods.Mean-Median-Mode-Range-Demonstration.pptx
Mean-Median-Mode-Range-Demonstration.pptxkrishan425
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This document provides demonstrations of calculating the mean, median, mode, and range for various data sets. It explains how to find each average value and compares the strengths and weaknesses of each. The mean averages all values, the median ignores outliers, and the mode represents non-numerical or categorical data. Examples are worked through step-by-step and the key is to order the data before analyzing it using these different averaging methods.Factors And Primes
Factors And Primesguesta8f50
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This document discusses lowest common multiples, factors, highest common factors, and prime numbers. It provides examples of finding the LCM and HCF of various number pairs. It defines a factor as a number that divides evenly into another number. Prime numbers are defined as numbers divisible only by 1 and themselves. Examples are given of listing the prime factors of different numbers.Factors And Primes
Factors And Primesguesta8f50
油
This document discusses lowest common multiples, factors, highest common factors, and prime numbers. It provides examples of finding the LCM and HCF of various number pairs. It defines a factor as a number that divides evenly into another number. Prime numbers are defined as numbers divisible only by 1 and themselves. Examples are given of listing the prime factors of different numbers.PEREYRA, MARIA DANIELA.pptx
PEREYRA, MARIA DANIELA.pptxmariadanielapereyra
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1) The document discusses measures of central tendency (mean, median, mode) for ungrouped data. It provides examples of calculating each measure for various data sets.
2) Formulas and steps are outlined for calculating the mean, median, and mode of ungrouped data. The mean is the sum of all values divided by the total number of observations. The median involves arranging the data from lowest to highest value. The mode is the value that occurs most frequently in the data set.
3) Examples are worked through demonstrating how to calculate and identify the mean, median, and mode for different ungrouped data sets, including scores, prices, and numbers of students. Measures are also calculated and identified in practice activitiesMore from ListeningDaisy (11)
Geometry dots & lines
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- A ray has one endpoint and extends off to infinity in one direction
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Factor by groupingListeningDaisy
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The document provides steps for factoring polynomial expressions:
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2) Find the greatest common factor (GCF) of the grouped terms;
3) Enclose the GCF and the grouped terms in parentheses to arrive at the factored expression.
Worked examples demonstrate factoring various polynomials, including using negative signs properly.Factoring polynomials completely
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The document provides instructions on how to completely factor polynomials. It gives examples of factoring expressions like 4n^2 - 16, 5x^2 - 45, and 3x^2 - 18x - 21. The steps explained are to find the greatest common factor, factor any binomials or trinomials, and simplify the expression as much as possible. Additional practice problems and their factored solutions are provided.Factoring Special Products in Difference of Squares
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The document provides examples of factoring quadratic expressions of the form a^2 +/- b^2 into the form (a +/- b)(a -/+ b). It demonstrates factoring several quadratic expressions using this method, including expressions with coefficients other than 1. It also introduces a formula for factoring expressions of the form a^2 + 2ab + b^2 and applies this formula to one example. Finally, it factors one expression where the middle term is negative by distributing the negative sign appropriately.Factoring Pt. 2/2 (x^2 + bx + c)
Factoring Pt. 2/2 (x^2 + bx + c)ListeningDaisy
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1. The document discusses factoring quadratic expressions using the greatest common factor (GCF) method.
2. It provides examples of factoring expressions such as 3x^2 + 8x + 4 by trying different pairs of binomials that multiply to the GCF and constant term.
3. The document also addresses factoring expressions with negative coefficients, explaining that you can factor the expression inside the parentheses and multiply the whole expression by -1.Factoring pt. 1/2
Factoring pt. 1/2ListeningDaisy
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1. The document provides step-by-step instructions for factoring quadratic expressions using reverse FOIL. It explains that the factors are determined by the constant term's factors and shows examples of factoring expressions with positive and negative coefficients.
2. Problems include factoring expressions into standard form, factoring expressions with variables, and solving a word problem involving the area of two shapes to determine the width of one. The document breaks problems down into clear steps and provides answers on subsequent slides.Solving polynomial equations in factored form
Solving polynomial equations in factored formListeningDaisy
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Math vocab 1
Math vocab 1ListeningDaisy
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1. The document defines key math vocabulary terms including variable, constant, coefficient, leading coefficient, like terms, monomial, polynomial, binomial, and trinomial.
2. Examples are provided to demonstrate identifying variables, constants, coefficients, like terms, and determining if expressions are monomials, polynomials, binomials, or trinomials.
3. The degree of a polynomial is defined as the highest exponent present in the polynomial. Examples show determining the degree of various polynomials.Measures of central tendency
- 1. Measures of Central Tendency By L.D.
- 2. Table of Contents 際際滷 3: Foreword 際際滷 4: How to Find Median 際際滷 5: How to Find Mean 際際滷 6: Mini Lesson: Mean Names 際際滷 7: How to Find Mode 際際滷 8: How to Find Range
- 3. Forward We will be using the problem below as an example problem to find the median, mean, mode and range. Marcella was played 5 ballgames where she scored the scores below. 28, 18, 24, 22, 18 The best thing to do for the next few problems is put the numbers in numerical order. 18, 18, 22, 24, 28
- 4. How to Find Median You organize the numbers in numerical order. 18, 18, 22, 24, 28 The number of middling value is the median, in this case it is 22. Sometimes there is no median at all.
- 5. How to Find Mean Numbers: 18, 18, 22, 24, 28 To find the mean you add up all the numbers. 18 + 18 + 22 + 24 + 28 = 110 Then you take the 110 and divide it by the number of numbers, which is 5 in this case. 110/5 = 22 Mean: 22
- 6. Mini Lesson: Mean Names Another word for mean is average.
- 7. How to Find Mode Numbers: 18, 18, 22, 24, 28 To find this one you take the number that has the most of itself in the list and call it your mode. In this case it is 18 There can be multiple duplicates of a number, but the mode will only be one number. It is easier to find the mode if the numbers are in numerical order. Mode: 18
- 8. How to Find Range Numbers: 18, 18, 22, 24, 28 To find the range you take the maximum or the largest number and minus the minimum or smallest number from it. 28 18 = 10 Range : 10