Flashcard 3, Chapter 2...Stem and Leaf, Dot Plots & Circle graphs

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, to retain the original data values while showing their distribution.

Front

How do you interpret a dot plot?

Back

A dot plot displays individual data points as dots along a number line, allowing for easy visualization of frequency and distribution of data.

Front

What is a circle graph (pie chart)?

Back

A circle graph, or pie chart, is a circular statistical graphic divided into slices to illustrate numerical proportions, where the whole circle represents 100%.

Front

How do you calculate the percentage of a category in a circle graph?

Back

To calculate the percentage of a category, divide the part (value of the category) by the whole (total value) and multiply by 100.

Front

What does a whole circle graph represent?

Back

A whole circle graph represents 100% of the data being analyzed.

Front

How do you find the mode in a data set?

Back

The mode is the value that appears most frequently in a data set.

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, it is the average of the two middle numbers.

Front

How do you determine the range of a data set?

Back

The range is calculated by subtracting the smallest value from the largest value in the data set.

Front

What is the purpose of a frequency table?

Back

A frequency table organizes data to show how often each value occurs, making it easier to analyze and interpret the data.

Front

How many students have 12 Brothers and Sisters?

Back

1 student.