1-Variable Statistics Basic

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 find the mode of a data set?

Back

The mode is the value that appears most frequently in a data set. If no number repeats, the data set has no mode.

Front

What is the median of 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

What is an outlier in a data set?

Back

An outlier is a data point that differs significantly from other observations. It may indicate variability in the data or an error.

Front

How do you identify the median in a box and whisker plot?

Back

The median is represented by the line inside the box of a box and whisker plot, dividing the data into two equal halves.

Front

What does a box and whisker plot show?

Back

A box and whisker plot displays the distribution of a data set based on five summary statistics: minimum, first quartile (Q1), median, third quartile (Q3), and maximum.

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set.

Front

How do you calculate the mean of a data set?

Back

The mean is calculated by adding all the values in the data set and dividing by the number of values.

Front

What is the purpose of using statistics?

Back

Statistics help summarize, analyze, and interpret data to make informed decisions and predictions.

Front

What is a frequency distribution?

Back

A frequency distribution is a summary of how often each value occurs in a data set.