One Variable stat practice

Front

What is the mean of a set of numbers?

Back

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

Front

How do you find the median of a data set?

Back

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

Front

What is the mode in a data set?

Back

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

Front

How do you calculate the range of a set of numbers?

Back

The range is calculated by subtracting the smallest number from the largest number in the set.

Front

What does it mean if a data set is skewed?

Back

A skewed data set is one where the values are not symmetrically distributed, meaning one tail is longer or fatter than the other.

Front

What is a frequency distribution?

Back

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

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities (e.g., colors, names), while quantitative data consists of numerical values that can be measured (e.g., height, weight).

Front

What is a bar graph used for?

Back

A bar graph is used to represent categorical data with rectangular bars, where the length of each bar is proportional to the value it represents.

Front

What is a line graph used for?

Back

A line graph is used to display data points over time, showing trends and changes in values.

Front

What is a pie chart?

Back

A pie chart is a circular statistical graphic divided into slices to illustrate numerical proportions.