FREQUENCY DISTRIBUTION

Slides:



Advertisements
Similar presentations
Chapter 5 Some Key Ingredients for Inferential Statistics: The Normal Curve, Probability, and Population Versus Sample.
Advertisements

Displaying Data Objectives: Students should know the typical graphical displays for the different types of variables. Students should understand how frequency.
CmpE 104 SOFTWARE STATISTICAL TOOLS & METHODS MEASURING & ESTIMATING SOFTWARE SIZE AND RESOURCE & SCHEDULE ESTIMATING.
Sampling: Final and Initial Sample Size Determination
4. FREQUENCY DISTRIBUTION
A frequency table is an organized count of items or values. In its simplest form a frequency table shows how frequently each particular value occurs in.
QUANTITATIVE DATA ANALYSIS
CHAPTER 2: Visual Description of Data – Part 1
A second example of Chi Square Imagine that the managers of a particular factory are interested in whether each line in their assembly process is equally.
Chapter 8 Estimation: Single Population
Edpsy 511 Homework 1: Due 2/6.
CHAPTER 2 Basic Descriptive Statistics: Percentages, Ratios and rates, Tables, Charts and Graphs.
PPA 415 – Research Methods in Public Administration Lecture 2 - Counting and Charting Responses.
Chapter 9: Introduction to the t statistic
Chapter 6: Probability.
Basic Descriptive Statistics Healey, Chapter 2
CHAPTER 2 Basic Descriptive Statistics: Percentages, Ratios and rates, Tables, Charts and Graphs.
Business Statistics, A First Course (4e) © 2006 Prentice-Hall, Inc. Chap 8-1 Chapter 8 Confidence Interval Estimation Business Statistics, A First Course.
FREQUENCY DISTRIBUTION. Objectives; Organize data in the form of frequency distribution Distinguish an exact limits, class mark, class intervals, cumulative.
Chapter 2: Organization of Information: Frequency Distributions Frequency Distributions Proportions and Percentages Percentage Distributions Comparisons.
Frequency Table Frequency tables are an efficient method of displaying data The number of cases for each observed score are listed Scores that have 0 cases.
Copyright © 2012 by Nelson Education Limited.2-1 Chapter 2 Basic Descriptive Statistics: Percentages, Ratios and Rates, Tables, Charts, and Graphs.
1 Chapter Seven Introduction to Sampling Distributions Section 1 Sampling Distribution.
Confidence Intervals (Chapter 8) Confidence Intervals for numerical data: –Standard deviation known –Standard deviation unknown Confidence Intervals for.
Basic Business Statistics, 11e © 2009 Prentice-Hall, Inc. Chap 8-1 Confidence Interval Estimation.
Sections 6-1 and 6-2 Overview Estimating a Population Proportion.
1 Chapter 6. Section 6-1 and 6-2. Triola, Elementary Statistics, Eighth Edition. Copyright Addison Wesley Longman M ARIO F. T RIOLA E IGHTH E DITION.
Population All members of a set which have a given characteristic. Population Data Data associated with a certain population. Population Parameter A measure.
Estimation in Sampling!? Chapter 7 – Statistical Problem Solving in Geography.
Chapter 15 Data Analysis: Testing for Significant Differences.
For testing significance of patterns in qualitative data Test statistic is based on counts that represent the number of items that fall in each category.
● Final exam Wednesday, 6/10, 11:30-2:30. ● Bring your own blue books ● Closed book. Calculators and 2-page cheat sheet allowed. No cell phone/computer.
 Frequency Distribution is a statistical technique to explore the underlying patterns of raw data.  Preparing frequency distribution tables, we can.
Slide 1 © 2002 McGraw-Hill Australia, PPTs t/a Introductory Mathematics & Statistics for Business 4e by John S. Croucher 1 n Learning Objectives –Identify.
Biostatistics, statistical software III. Population, statistical sample. Probability, probability variables. Important distributions. Properties of the.
Determination of Sample Size: A Review of Statistical Theory
What is the difference between categorical and quantitative data?
: An alternative representation of level of significance. - normal distribution applies. - α level of significance (e.g. 5% in two tails) determines the.
BASIC STATISTICAL CONCEPTS Chapter Three. CHAPTER OBJECTIVES Scales of Measurement Measures of central tendency (mean, median, mode) Frequency distribution.
Edpsy 511 Exploratory Data Analysis Homework 1: Due 9/19.
Chapter 3: Organizing Data. Raw data is useless to us unless we can meaningfully organize and summarize it (descriptive statistics). Organization techniques.
Confidence Intervals for a Population Proportion Excel.
Measurements and Their Analysis. Introduction Note that in this chapter, we are talking about multiple measurements of the same quantity Numerical analysis.
1 Probability and Statistics Confidence Intervals.
9-1 ESTIMATION Session Factors Affecting Confidence Interval Estimates The factors that determine the width of a confidence interval are: 1.The.
Review: Stages in Research Process Formulate Problem Determine Research Design Determine Data Collection Method Design Data Collection Forms Design Sample.
Sample Size Mahmoud Alhussami, DSc., PhD. Sample Size Determination Is the act of choosing the number of observations or replicates to include in a statistical.
1 Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved. Example: In a recent poll, 70% of 1501 randomly selected adults said they believed.
Chapter 9: Introduction to the t statistic. The t Statistic The t statistic allows researchers to use sample data to test hypotheses about an unknown.
Probability in Sampling. Key Concepts l Statistical terms in sampling l Sampling error l The sampling distribution.
Probability in Sampling. Key Concepts l Statistical terms in sampling l Sampling error l The sampling distribution.
ESTIMATION OF THE MEAN. 2 INTRO :: ESTIMATION Definition The assignment of plausible value(s) to a population parameter based on a value of a sample statistic.
Statistics -Descriptive statistics 2013/09/30. Descriptive statistics Numerical measures of location, dispersion, shape, and association are also used.
Chapter 7 Estimation. Chapter 7 ESTIMATION What if it is impossible or impractical to use a large sample? Apply the Student ’ s t distribution.
The rise of statistics Statistics is the science of collecting, organizing and interpreting data. The goal of statistics is to gain understanding from.
Estimation and Confidence Intervals
Frequency Distributions and Graphs
Elementary Applied Statistics
Zebrafish Research Data Analysis Choices.
Chapter 12 Using Descriptive Analysis, Performing
AP Statistics: Chapter 7
Goodness of Fit Tests The goal of χ2 goodness of fit tests is to test is the data comes from a certain distribution. There are various situations to which.
Diet Analysis % frequency of occurrence (%O), i.e., the number of stomachs in which a food item occurs expressed as a percentage of all stomachs containing.
Chapter 8: Sampling Variability and Sampling Distributions
Sampling Distribution
Sampling Distribution
Discrete Event Simulation - 4
Contingency Tables and Association
CHAPTER 15 SUMMARY Chapter Specifics
Chapter 11 Analyzing the Association Between Categorical Variables
Presentation transcript:

FREQUENCY DISTRIBUTION It is simply a table in which the data are grouped into classes and the number of cases which fall in each class are recorded. It shows the frequency of occurrence of different values of a single Phenomenon. The frequency (f) of a particular observation is the number of times the observation occurs in the data. The distribution of a variable is the pattern of frequencies of the observation. Frequency distributions can show either the actual number of observations falling in each range or the percentage of observations. Frequency distribution tables can be used for both categorical and numeric variables. Continuous variables should only be used with class intervals. A frequency distribution is constructed for three main reasons: To facilitate the analysis of data. To estimate frequencies of the unknown population distribution from the distribution of sample data and To facilitate the computation of various statistical measures

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.