Standard Deviation 1

Front

What is the mean in statistics?

Back

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

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What is the median in a data set?

Back

The median is the middle value when the numbers are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the mode in statistics?

Back

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

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set.

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 means 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.

Front

How do you calculate the mean of a data set?

Back

To calculate the mean, add all the numbers in the data set together and then divide by the total number of values.

Front

How do you find the median of a data set with an odd number of values?

Back

To find the median, arrange the values in ascending order and select the middle value.

Front

How do you find the median of a data set with an even number of values?

Back

To find the median, arrange the values in ascending order and calculate the average of the two middle values.

Front

What is the formula for calculating standard deviation?

Back

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

Front

What does a high standard deviation indicate about a data set?

Back

A high standard deviation indicates that the data points are spread out over a wider range of values, meaning there is more variability.