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### Segments in this Video

#### The Normal Curve(03:58)

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Professor Naomi Lowe explains how Z-scores relate to the normal curve. Z-scores provide information about one score relative to other scores. The Z table represents values under the normal curve.

#### The Z Table(06:45)

The Z table is used to determine the percentage a Z score is from the mean and what area remains in the tail under the normal curve. Lowe demonstrates how to use the Z table.

#### Using the Z Score(07:44)

To calculate the percentage area above or below a raw score or Z score, first draw a normal curve, estimate where the Z score falls, and shade the area. Lowe works through examples using the Z table.

#### Percentage to Z Score(04:29)

Lowe walks through the steps to calculate a Z score or raw score when only a percentage is provided.

#### Samples and Populations(07:49)

A population includes all members of a defined group, and a sample is a part of the population used to draw conclusions about the population. Methods of sampling include random and haphazard selection. Sample statistics are used to draw conclusions about population parameters.

#### Probability(05:35)

Probability is the expected relative frequency of a particular outcome with a range of 0 to 1. The equation for probability is the possible successful outcomes divided by all possible outcomes.

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# Z-Scores and the Normal Curve: Lecture 3, Part 2

Part of the Series : Statistics With Naomi Lowe
 DVD (Chaptered) Price: \$129.95 DVD + 3-Year Streaming Price: \$194.93 3-Year Streaming Price: \$129.95

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### Description

In this video lecture, Professor Naomi Lowe explains how Z-scores relate to the normal curve, discusses samples and population, and looks at probability.

Length: 37 minutes

Item#: BVL150103

ISBN: 978-1-64347-555-4 Closed Captioned