Unit 8 Describing Data Test Review

Front

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

How do you find the interquartile range (IQR)?

Back

The interquartile range (IQR) is found by subtracting the first quartile (Q1) from the third quartile (Q3). It measures the spread of the middle 50% of the data.

Front

What is Quartile 3 (Q3)?

Back

Quartile 3 (Q3) is the median of the upper half of a data set. It represents the value below which 75% of the data falls.

Front

What does a histogram represent?

Back

A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points within specified ranges (bins).

Front

How do you determine the maximum value in a data set?

Back

The maximum value is the largest number in the data set.

Front

What is a data set?

Back

A data set is a collection of related data points or values, often organized in a table or list.

Front

What is the range of a data set?

Back

The range is the difference between the maximum and minimum values in a data set.

Front

What is a quartile?

Back

A quartile is a type of quantile that divides a data set into four equal parts, each containing 25% of the data.

Front

How do you calculate the mean of a data set?

Back

The mean is calculated by adding all the values in the data set and dividing by the number of values.

Front

What is a frequency distribution?

Back

A frequency distribution is a summary of how often each value occurs in a data set.