Dot Plot, Histogram & Box Plot

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of data points plotted on a simple scale, typically using dots to represent individual data points.

Front

How do you interpret a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, where the data is divided into bins or intervals, and the height of each bar represents the frequency of data points within that interval.

Front

What is a box plot?

Back

A box plot, or whisker plot, is a standardized way of displaying the distribution of data based on a five-number summary: minimum, first quartile (Q1), median, third quartile (Q3), and maximum.

Front

What does the median represent in a data set?

Back

The median is the middle value of a data set when it is ordered from least to greatest. It divides the data into two equal halves.

Front

How do you calculate the range of a data set?

Back

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

Front

What is the purpose of using a box plot?

Back

A box plot is used to visually summarize the distribution of a data set, highlighting the median, quartiles, and potential outliers.

Front

What does a histogram tell you about data distribution?

Back

A histogram shows the frequency of data points within specified ranges, allowing you to see the shape of the data distribution, such as normal, skewed, or uniform.

Front

How can you identify outliers in a box plot?

Back

Outliers in a box plot are typically represented as individual points that fall outside the whiskers, which extend to 1.5 times the interquartile range (IQR) from the quartiles.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the first quartile (Q1) and the third quartile (Q3) and measures the spread of the middle 50% of the data.

Front

How do you find 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.