Unit 1 Lesson 14 Outliers

Unit 1 Lesson 14 Outliers

Assessment

Flashcard

Mathematics

8th Grade

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is an outlier in a data set?

Back

An outlier is a data point that differs significantly from other observations in a data set, often due to variability in the measurement or it may indicate a measurement error.

2.

FLASHCARD QUESTION

Front

How does adding a large number (e.g., 40) to a data set affect the mean?

Back

It increases the mean because the total sum of the data increases significantly.

3.

FLASHCARD QUESTION

Front

How does adding a small number (e.g., 1) to a data set affect the mean?

Back

It decreases the mean if the added number is lower than the current mean.

4.

FLASHCARD QUESTION

Front

What is variability in a data set?

Back

Variability refers to how spread out or dispersed the values in a data set are.

5.

FLASHCARD QUESTION

Front

How does adding a number that is much larger than the current data points affect variability?

Back

It may not significantly affect variability if the new number is an outlier.

6.

FLASHCARD QUESTION

Front

How does adding a number that is much smaller than the current data points affect variability?

Back

It can increase variability as it introduces a new extreme value.

7.

FLASHCARD QUESTION

Front

What happens to the variability when a number equal to the mean is added to the data set?

Back

It stays the same because it does not change the spread of the data.

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