Statistics Review

Front

What is a box plot?

Back

A box plot is a graphical representation of a data set that shows the distribution through five summary statistics: minimum, first quartile (Q1), median, third quartile (Q3), and maximum.

Front

How do you calculate the percentage of a group?

Back

To calculate the percentage, divide the part by the whole and multiply by 100. For example, if 15 out of 30 chickens laid 3 to 8 eggs, the percentage is (15/30) * 100 = 50%.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the first quartile (Q1) and the third quartile (Q3) in a data set, representing the range of the middle 50% of the data.

Front

How do you find the range of a data set?

Back

The range is found by subtracting the smallest value in the data set from the largest value. For example, if the smallest number is 2 and the largest is 10, the range is 10 - 2 = 8.

Front

What does a line plot represent?

Back

A line plot is a simple way to display data along a number line, showing the frequency of each value in the data set.

Front

What is a frequency distribution?

Back

A frequency distribution is a summary of how often each value occurs in a data set, often displayed in a table or graph.

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 values, the median is the average of the two middle numbers.

Front

What is a quartile?

Back

A quartile is a type of quantile that divides a data set into four equal parts, with each part representing 25% of the data.

Front

What is 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

How do you interpret a box plot?

Back

In a box plot, the box represents the interquartile range (IQR), the line inside the box shows the median, and the 'whiskers' extend to the minimum and maximum values.