Measure of Central Tendency

Front

What is the measure of central tendency?

Back

A statistical measure that identifies a single value as representative of an entire dataset, commonly including mean, median, and mode.

Front

Define Mean.

Back

The average of a set of numbers, calculated by dividing the sum of all values by the number of values.

Front

Define Median.

Back

The middle value in a dataset when the numbers are arranged in ascending or descending order.

Front

Define Mode.

Back

The value that appears most frequently in a dataset.

Front

What is the formula for calculating the mean of a dataset?

Back

Mean = (Sum of all values) / (Number of values)

Front

How do you find the median in an even set of numbers?

Back

Arrange the numbers in order and take the average of the two middle numbers.

Front

What is a frequency distribution?

Back

A summary of how often each value occurs in a dataset.

Front

What is the total frequency in a dataset?

Back

The sum of all frequencies in a frequency distribution.

Front

What is a class mark?

Back

The midpoint of a class interval, calculated as (Lower limit + Upper limit) / 2.

Front

What does it mean for a graph of data to be skewed left?

Back

Most of the data is concentrated on the right side, with a long tail extending to the left.