7.1 Displaying Data - Lesson Check

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 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.

Front

What does it mean if a graph is unimodal?

Back

A unimodal graph has one clear peak or mode, indicating that most data points cluster around a single value.

Front

What does it mean if a graph is right skewed?

Back

A right skewed graph has a longer tail on the right side, indicating that there are a few higher values that are pulling the mean to the right.

Front

How can you determine the total number of students represented in a histogram?

Back

The total number of students can be determined by summing the heights of the bars in the histogram, where each height represents the frequency of students in each category.

Front

What is a symmetrical distribution?

Back

A symmetrical distribution is one where the left and right sides of the graph are mirror images of each other, indicating that the mean, median, and mode are all equal.

Front

What is a bimodal distribution?

Back

A bimodal distribution has two distinct peaks or modes, indicating that there are two values that appear most frequently in the data set.

Front

What does it mean if a distribution is skewed left?

Back

A left skewed distribution has a longer tail on the left side, indicating that there are a few lower values that are pulling the mean to the left.

Front

What is the difference between mean and median?

Back

The mean is the average of all values in a data set, while the median is the middle value when the data is ordered.

Front

How do you interpret a histogram?

Back

A histogram displays the frequency of data points within specified ranges (bins), allowing you to see the distribution and shape of the data.