Standard Deviation Flashcard

Standard Deviation Flashcard

Assessment

Flashcard

Mathematics

12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the mean?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

2.

FLASHCARD QUESTION

Front

How do you calculate the median?

Back

To find the median, arrange the numbers in ascending order and identify the middle number. If there is an even number of observations, the median is the average of the two middle numbers.

3.

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. A low standard deviation indicates that the values tend to be close to the mean, while a high standard deviation indicates that the values are spread out over a wider range.

4.

FLASHCARD QUESTION

Front

How do you calculate the standard deviation for a sample?

Back

1. Find the mean of the data set. 2. Subtract the mean from each data point and square the result. 3. Sum all squared results. 4. Divide by the number of data points minus one (n-1). 5. Take the square root of the result.

5.

FLASHCARD QUESTION

Front

What is the formula for population standard deviation?

Back

The formula for population standard deviation is: σ = √(Σ(xi - μ)² / N), where μ is the population mean, N is the number of data points, and xi represents each data point.

6.

FLASHCARD QUESTION

Front

What is mode in statistics?

Back

The mode is the value that appears most frequently in a data set.

7.

FLASHCARD QUESTION

Front

How do you find the mode of a data set?

Back

To find the mode, count how many times each number appears in the data set. The number that appears the most is the mode.

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