Envision Topic 8 Review Part 1

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

Front

How do you find the maximum value in a Box & Whisker plot?

Back

The maximum value is represented by the rightmost point on the plot, which indicates the highest data point in the set.

Front

What does the minimum value in a Box & Whisker plot represent?

Back

The minimum value is the leftmost point on the plot, indicating the lowest data point in the set.

Front

What is variability in a data set?

Back

Variability refers to how spread out or clustered the data points are. Greater variability means the data points are more spread out.

Front

How can you determine if a data point is within the area where data is clustered?

Back

A data point is considered to be within the clustered area if it falls within the interquartile range (IQR) of the data set.

Front

What is a dot plot?

Back

A dot plot is a simple visual representation of data where each data point is represented by a dot above a number line.

Front

What is a Box & Whisker plot?

Back

A Box & Whisker plot is a graphical representation that shows the distribution of a data set based on five summary statistics: minimum, first quartile, median, third quartile, and maximum.

Front

What does it mean if a data set has a high variability?

Back

A high variability indicates that the data points are spread out over a wide range of values, suggesting less consistency in the data.

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 middle 50% of the data.

Front

How do you interpret a dot plot?

Back

To interpret a dot plot, look for clusters, gaps, and the overall shape of the data distribution to understand trends and patterns.