MATH 115 Unit 1 Test Information Flashcard

MATH 115 Unit 1 Test Information Flashcard

Assessment

Flashcard

Mathematics

University

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a key in a plot?

Back

A key (or legend) explains the symbols, colors, or patterns used in a plot to represent different data sets.

2.

FLASHCARD QUESTION

Front

What is standard deviation?

Back

Standard deviation is a measure of the amount of variation or dispersion in a set of values.

3.

FLASHCARD QUESTION

Front

How do you calculate variance from standard deviation?

Back

Variance is the square of the standard deviation. If the standard deviation is 3.5, the variance is 3.5^2 = 12.25.

4.

FLASHCARD QUESTION

Front

What does it mean if data is skewed right?

Back

If data is skewed right, it means that the tail on the right side of the distribution is longer or fatter than the left side.

5.

FLASHCARD QUESTION

Front

What is a uniform distribution?

Back

A uniform distribution is a type of distribution in which all outcomes are equally likely.

6.

FLASHCARD QUESTION

Front

What is the population in a study?

Back

The population is the entire group of individuals or instances about whom we hope to learn.

7.

FLASHCARD QUESTION

Front

What is a sample in statistics?

Back

A sample is a subset of the population that is used to represent the entire group.

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