Envision Topic 8 Review Part 1

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots plotted above a number line, representing the frequency of data points.

Front

What does it mean when data is clustered in a dot plot?

Back

When data is clustered, it indicates that a group of data points are close together, showing a concentration of values in that range.

Front

How do you determine the median from a Box & Whisker plot?

Back

The median is the line that divides the box into two equal parts, representing the middle value of the data set.

Front

What is a Box & Whisker plot used for?

Back

A Box & Whisker plot is used to display the distribution of a data set, showing the median, quartiles, and potential outliers.

Front

What does the interquartile range (IQR) represent in a Box & Whisker plot?

Back

The IQR represents the range of the middle 50% of the data, calculated as the difference between the first quartile (Q1) and the third quartile (Q3).

Front

What percentage of data is represented by the whiskers in a Box & Whisker plot?

Back

The whiskers typically represent the range of the data outside the interquartile range, showing the minimum and maximum values.

Front

How do you interpret the quartiles in a Box & Whisker plot?

Back

The first quartile (Q1) is the median of the lower half of the data, the second quartile (Q2) is the overall median, and the third quartile (Q3) is the median of the upper half of the data.

Front

What does it mean if a Box & Whisker plot has a long whisker on one side?

Back

A long whisker indicates a larger spread of data on that side, suggesting the presence of outliers or a wider range of values.

Front

How can you find the percentage of data within a certain range using a Box & Whisker plot?

Back

You can determine the percentage of data within a range by analyzing the sections of the plot and calculating the proportion of data points that fall within that range.

Front

What is the significance of the median in data analysis?

Back

The median provides a measure of central tendency that is less affected by outliers than the mean, giving a better representation of the data's center.