Measures of Center and Spread

Front

What is the definition of 'Measures of Center'?

Back

Measures of Center are statistical values that describe the center point or typical value of a dataset, commonly represented by the mean, median, and mode.

Tags

CCSS.6.SP.A.3

Front

What is the definition of 'Measures of Spread'?

Back

Measures of Spread are statistical values that describe the dispersion or variability of a dataset, including range, variance, and standard deviation.

Tags

CCSS.6.SP.A.3

Front

What is the mean, and how is it calculated?

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.

Tags

CCSS.6.SP.B.5C

Front

What is the median, and how is it determined?

Back

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

Tags

CCSS.6.SP.B.5C

Front

What is the mode?

Back

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

Tags

CCSS.6.SP.B.5C

Front

What does it mean if a distribution is skewed left?

Back

A left-skewed distribution has a longer tail on the left side, indicating that the majority of the data points are concentrated on the right.

Front

What does it mean if a distribution is skewed right?

Back

A right-skewed distribution has a longer tail on the right side, indicating that the majority of the data points are concentrated on the left.

Front

What is the range of a dataset?

Back

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

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Front

How do you calculate the variance of a dataset?

Back

Variance is calculated by finding the average of the squared differences from the mean.

Front

What is standard deviation?

Back

Standard deviation is a measure of the amount of variation or dispersion in a set of values, calculated as the square root of the variance.