Course 2 - Histograms

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points within specified ranges (bins).

Front

How do you determine 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 does it mean to find the percent of a group?

Back

Finding the percent of a group involves calculating the proportion of a specific subset relative to the total group, expressed as a percentage.

Front

How do you calculate the percentage of students scoring within a specific range on a histogram?

Back

To calculate the percentage, divide the number of students in the specified range by the total number of students, then multiply by 100.

Front

What is the significance of the x-axis in a histogram?

Back

The x-axis represents the bins or intervals of data, showing the range of values for the variable being measured.

Front

What is the significance of the y-axis in a histogram?

Back

The y-axis represents the frequency or count of data points that fall within each bin.

Front

How can you interpret the shape of a histogram?

Back

The shape of a histogram can indicate the distribution of data, such as normal, skewed, or uniform distributions.

Front

What is a line plot?

Back

A line plot is a simple way to display data along a number line, showing individual data points and their frequency.

Front

How do you find the total number of students represented in a histogram?

Back

The total number of students is found by summing the frequencies of all the bins in the histogram.

Front

What does it mean when a histogram has a peak?

Back

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