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Distribution

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AP Statistics

Definition

In statistics, distribution refers to the way data is spread out or organized. It describes how frequently each value occurs and provides insights into patterns and characteristics of the dataset.

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Subjects (69)

Practice Questions (6)

Suppose we conduct a chi-square goodness of fit test to examine the distribution of eye colors in a population. We collect data from a random sample of 500 individuals and obtain the following observed frequencies: 100 with brown eyes, 200 with blue eyes, 120 with green eyes, and 80 with hazel eyes. The expected proportions are 40%, 15%, 20%, and 25%, respectively. To calculate the test statistic for this scenario, what would be the next step?
What is the distribution of the slope estimate when the assumptions of a linear regression model are satisfied and the null hypothesis is true?
A researcher wants to investigate if the distribution of car colors in a city is different from the expected distribution. They collect the color values of a random sample of 500 cars. Which of the following procedures should be used?
A researcher wants to investigate if the distribution of the level of education (high school, college, graduate) within different income level groups (low, medium, high) are the same. She collects data from a random sample of 500 individuals and creates a contingency table. Which of the following procedures is most appropriate for her to use?
In constructing a confidence interval for a population mean when the population standard deviation is unknown and the sample size is small, which distribution should be used?
If the graph of a discrete random variable is roughly symmetric, what does it suggest about the distribution?

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AP Statistics - What Are the Best Quizlet Decks for AP Statistics?

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Distribution

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"Distribution" also found in:

Subjects (69)

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Distribution

from class:

AP Statistics

Definition

Related terms

"Distribution" also found in:

Subjects (69)

Practice Questions (6)

Additional resources (1)

© 2024 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.

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