Measures of Central Tendency, Stem & Leaf, Box & Whisker

Front

What is the mean of a set of numbers?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

Front

How do you find the median of a set of numbers?

Back

To find the median, arrange the numbers in ascending order and identify the middle number. If there are two middle numbers, calculate their average.

Front

What is a Stem and Leaf Plot?

Back

A Stem and Leaf Plot is a method of displaying quantitative data in a graphical format, similar to a histogram, that retains the original data values.

Front

How do you determine the minimum value in a data set?

Back

The minimum value is the smallest number in a data set.

Front

What is a Box and Whisker Plot?

Back

A Box and Whisker Plot is a graphical representation of a data set that shows the median, quartiles, and extremes (minimum and maximum values).

Front

What does the median represent in a data set?

Back

The median represents the middle value of a data set when it is ordered from least to greatest.

Front

How do you calculate the mean of the numbers: 5, 11, 2, 12, 4, 2?

Back

Add the numbers: 5 + 11 + 2 + 12 + 4 + 2 = 36. Then divide by the count of numbers (6): 36 / 6 = 6.

Front

What is the purpose of a Box and Whisker Plot?

Back

The purpose of a Box and Whisker Plot is to visually summarize the distribution of a data set, highlighting its central tendency and variability.

Front

How many scores are represented in a Stem and Leaf Plot with 18 leaves?

Back

There are 18 scores represented in the Stem and Leaf Plot.

Front

What is the significance of the median in a Box and Whisker Plot?

Back

The median in a Box and Whisker Plot indicates the center of the data set and divides it into two equal halves.