Front

What is a dot plot?

Back

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

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, using bars to show the frequency of data within certain ranges.

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, median, third quartile, and maximum.

Front

What does the lower quartile represent?

Back

The lower quartile (Q1) represents the value below which 25% of the data falls.

Front

How do you find the median in a data set?

Back

To find the median, arrange the data in ascending order and locate the middle value. If there is an even number of values, average the two middle values.

Front

What does it mean if data is skewed left?

Back

If data is skewed left, it means that the left tail of the distribution is longer or fatter than the right tail, indicating that there are a few lower values.

Front

What does it mean if data is skewed right?

Back

If data is skewed right, it means that the right tail of the distribution is longer or fatter than the left tail, indicating that there are a few higher values.

Front

What is the purpose of a frequency distribution?

Back

A frequency distribution shows how often each value occurs in a data set, helping to visualize the distribution of data.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the upper quartile (Q3) and the lower quartile (Q1), representing the middle 50% of the data.

Front

What does a peak in a histogram indicate?

Back

A peak in a histogram indicates the mode or the most frequently occurring value(s) in the data set.