Dot Plots

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots plotted above a number line, where each dot represents a data point. It is used to visualize the distribution of data.

Front

How do you calculate the range of a data set?

Back

The range is calculated by subtracting the lowest score from the highest score in the data set.

Front

What is the median in a data set?

Back

The median is the middle value when the data points are arranged in ascending order. If there is an even number of observations, the median is the average of the two middle numbers.

Front

How do you find the mean of a data set?

Back

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

Front

What does it mean if a score is in the 90s?

Back

A score in the 90s refers to any score that falls between 90 and 99, indicating a high level of performance.

Front

What is the purpose of using a dot plot?

Back

Dot plots are used to display the frequency of data points in a simple and visually appealing way, making it easy to identify patterns and outliers.

Front

How can you determine the mode of a data set?

Back

The mode is the value that appears most frequently in a data set. A data set may have one mode, more than one mode, or no mode at all.

Front

What is the significance of the mean in statistics?

Back

The mean provides a measure of central tendency, summarizing the data set with a single value that represents the average.

Front

How do you interpret the median in a data set?

Back

The median provides insight into the center of the data set, indicating that half of the values are below it and half are above it.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities (e.g., colors, names), while quantitative data represents numerical values that can be measured (e.g., scores, heights).