FLASHCARD: Methods of Displaying Data

Front

What is a right-skewed distribution?

Back

A right-skewed distribution is one where most of the data points are concentrated on the left side, with a tail extending to the right. This means that the majority of values are lower, with a few higher values pulling the mean to the right.

Front

How do you determine the mode of a data set?

Back

The mode is the value that appears most frequently in a data set. To find it, count how many times each value occurs and identify the one with the highest frequency.

Front

What does it mean if a distribution is symmetrical?

Back

A symmetrical distribution is one where the left and right sides of the distribution are mirror images of each other. The mean, median, and mode are all equal in a perfectly symmetrical distribution.

Front

What is the median in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest. If there is an even number of values, the median is the average of the two middle numbers.

Front

How can you identify a uniform distribution?

Back

A uniform distribution is one where all outcomes are equally likely. In a graph, this appears as a flat line, indicating that each value has the same frequency.

Front

What is the purpose of a bar graph?

Back

A bar graph is used to display categorical data with rectangular bars representing the frequency or count of each category. The length of each bar is proportional to the value it represents.

Front

How do you read a pie chart?

Back

A pie chart displays data in a circular format, where each slice represents a proportion of the whole. The size of each slice corresponds to the percentage of that category relative to the total.

Front

What is a line graph used for?

Back

A line graph is used to show trends over time. It connects individual data points with lines, making it easy to see increases or decreases in values.

Front

What does it mean if a data set has an outlier?

Back

An outlier is a data point that is significantly different from the other values in the data set. It can skew the results and affect measures like the mean.

Front

How do you find the range of a data set?

Back

The range is found by subtracting the smallest value from the largest value in the data set. It gives an idea of how spread out the values are.