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Percentiles and the Normal Curve A Normal Curve The Normal Approximation Father’s Height The height of the men in the sample was on average 69 inches; the SD was 3 ...
z-Scores, the Normal Curve, & Standard Error of the Mean I. z-scores and conversions What is a z-score? A measure of an observation’s distance from the mean.
The Normal Distribution: The Normal curve is a mathematical abstraction which conveniently describes ("models") many frequency distributions of scores in real-life.

This curve is called a normal curve and is used to model the normal distribution. Normal Curve. The bell can vary in size but they all have the same basic properties.
THE ‘NORMAL’ DISTRIBUTION ... bell-shaped curve Also known as Gaussian distribution Point of inflection = 1 standard deviation from mean This is, ...
Introducing the Normal Curve Group 8 Wendy Taylor Gwen Pribek Xiaolin Fan Learning objectives The students will be able to define and explain the normal distribution ...
The Normal Curve Alias Author: Windows User Last modified by: Windows User Created Date: 5/17/2013 2:02:17 PM Document presentation format: On-screen Show (4:3)
AP Statistics Lesson 2.1 Density Curves and the Normal Distribution. Essential Question: How are Density Curves and Normal Curves used to analyze data?
Susan A. Nolan and Thomas E. Heinzen Statistics for the Behavioral Sciences Second Edition Chapter 6: The Normal Curve, Standardization, and z Scores
Normal Curve Example, p. 3 (d) What is the probability that sales are larger than 265? The normal curve table measures all probabilities (areas) ...
Title: The Normal Distribution Author: ghc Last modified by: ghc Created Date: 11/12/2008 6:58:15 PM Document presentation format: On-screen Show (4:3)
Set up a test. We know that the errors will in general even out when repeating measurements. By the previous assumption, it follows the normal curve.
Areas under the Normal Curve. Areas correspond to proportions of data. Areas are looked up in the z-score table . Special Properties of the Normal Distribution .
Normal Curve Area Problemsinvolving only z (not x yet) To accompany Hawkes lesson 6.2. A few slides are from Hawkes. Plus much original content by D.R.S.
5.3 Normal Distributions: Finding Values. Find a z-score given the area under the normal curve. Transform a z-score to an x-value.
Questions?? Examples: Exercise set D #9 p. 71 Exercise set A #9 p. 61 Exercise set E #8 p. 73 Ch. 5 Normal approximation Comparing histograms to the normal curve ...
Table I: Normal-curve Areas Table I on page 494-495 We need it for tests Areas under standard normal curve Areas between 0 and z (z>0) ...
Lecture 2 Standardization, Normal distribution, Stem-leaf, histogram Standardization is a re-scaling technique, useful for conveying information about the relative ...
A Standard Normal Distribution is a Normal probability distribution that has a mean of zero (0) and a standard deviation of one (1). The Standard Normal Distribution
Measures of Dispersion & The Standard Normal Distribution 9/12/06 The Semi-Interquartile Range (SIR) A measure of dispersion obtained by finding the difference ...
Chapter 5Probability and the Normal Curve. In Part I, we learned to categorize data to see basic patterns and trends. Measures of central tendency and variability ...
Find the indicated area under the standard normal curve. Use the table and show your work for credit. Between 𝑧=−1.53 and 𝑧=0 Sketch the standard normal curve
The total area under any normal curve is 1 because there is a 100% probability that the curve represents all possible occurrences of the associated event ...
College of Education and Health Professions The Normal Distribution Chapter 3 Assumption of Normality Many statistical tests (t, ANOVA) assume that the sampling ...

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