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

What does it mean for a distribution to be skewed left?

Back

A distribution is skewed left when the tail on the left side of the distribution is longer or fatter than the right side, indicating that there are a larger number of lower values.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is a measure of statistical dispersion, calculated as the difference between the third quartile (Q3) and the first quartile (Q1). It represents the range of the middle 50% of the data.

Front

How do you calculate the range of a data set?

Back

The range is calculated by subtracting the smallest value in the data set from the largest value.

Front

What is a box and whisker plot?

Back

A box and whisker plot is a graphical representation of a data set that displays the median, quartiles, and extremes (minimum and maximum values) of the data.

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

What is the mean of a data set?

Back

The mean is the average of a data set, calculated by adding all the values together and dividing by the number of values.

Front

What does it mean for a data set to be symmetric?

Back

A data set is symmetric if its left and right sides are mirror images of each other, indicating that the mean, median, and mode are all equal.

Front

What is a true statement about comparing two data sets?

Back

When comparing two data sets, you can analyze measures such as range, median, and mean to determine differences in their distributions.

Front

What is the significance of the highest median in box plots?

Back

The highest median in box plots indicates that the central tendency of that data set is greater than the others, suggesting higher overall values.