Line Graphs & Measures of Center

Front

What is a line graph?

Back

A line graph is a type of chart that displays information as a series of data points called 'markers' connected by straight line segments. It is commonly used to visualize data trends over time.

Front

What does 'mode' mean in statistics?

Back

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

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 observations, the median is the average of the two middle numbers.

Front

What is the range of a data set?

Back

The range is the difference between the largest and smallest values in a data set.

Front

What does 'no mode' mean?

Back

'No mode' means that no number in the data set appears more than once.

Front

What is the purpose of a line graph?

Back

A line graph is used to show trends over time, making it easier to see how data changes.

Front

How do you calculate the mean of a data set?

Back

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

Front

What is a data point?

Back

A data point is a single value or observation in a data set.

Front

What is the difference between a line graph and a bar graph?

Back

A line graph displays data points connected by lines, while a bar graph uses rectangular bars to represent the values of different categories.

Front

What is an outlier in a data set?

Back

An outlier is a value that is significantly higher or lower than the other values in a data set.