TEK 4.9B

Front

What is a dot plot and how is it used in data representation?

Back

A dot plot is a statistical chart that consists of dots representing the frequency of data points. Each dot represents one observation, and it is used to visualize the distribution of data points along a number line.

Front

How do you determine the number of data points within a specific range in a dot plot?

Back

To determine the number of data points within a specific range in a dot plot, count the number of dots that fall within the specified range on the number line.

Front

What is a stem-and-leaf plot and what information does it provide?

Back

A stem-and-leaf plot is a method of displaying quantitative data in a graphical format, similar to a histogram. It shows the distribution of data while preserving the original data values, with 'stems' representing the leading digits and 'leaves' representing the trailing digits.

Front

How do you calculate the difference between the highest and lowest values in a data set?

Back

To calculate the difference between the highest and lowest values in a data set, subtract the smallest value (minimum) from the largest value (maximum).

Front

What does it mean for a student to score 70% or higher on a test?

Back

Scoring 70% or higher on a test means that the student answered at least 70% of the questions correctly, indicating a satisfactory level of understanding of the material.

Front

What is the purpose of using plots like dot plots and stem-and-leaf plots in statistics?

Back

The purpose of using plots like dot plots and stem-and-leaf plots is to visually represent data, making it easier to identify patterns, trends, and distributions within the data set.

Front

How can you interpret the data from a dot plot?

Back

To interpret data from a dot plot, observe the number of dots at each value, identify clusters or gaps in the data, and analyze the overall shape of the distribution.

Front

What is the significance of the range in a data set?

Back

The range in a data set is the difference between the maximum and minimum values, providing a measure of the spread or dispersion of the data.

Front

How do you find the total number of observations in a dot plot?

Back

To find the total number of observations in a dot plot, count all the dots present, as each dot represents one observation.

Front

What strategies can be used to analyze data from a stem-and-leaf plot?

Back

Strategies to analyze data from a stem-and-leaf plot include identifying the median, mode, and range, as well as observing the distribution and frequency of data points.