Understanding Box Plots and Data Analysis

Mrs. Nelson teaches sixth-grade students how to create and analyze box plots using a five-number summary. The lesson involves collecting data from a blinking study, creating a dot plot, and then finding the minimum, maximum, median, and quartiles. Students learn to visualize data with a box plot and understand the distribution and variability within the data set.

What is the main objective of the lesson on box plots?

• To learn how to calculate averages

• To explore different types of graphs

• To use a five-number summary to draw a box plot

• To understand the concept of probability

What was the study about in the data set used for the box plot?

• The number of times people blinked while watching a video game

• The number of times people yawned during a lecture

• The number of times people smiled during a movie

• The number of times people laughed during a comedy show

What is the median value in the given data set?

• 15

• 51

• 12

• 21

Which value represents the first quartile (Q1) in the data set?

• 21

• 15

• 12

• 3

What is the maximum value in the five-number summary?

• 3

• 12

• 21

• 51

What does the interquartile range (IQR) represent in a box plot?

• The sum of all data points

• The average of the data set

• The range of the entire data set

• The middle 50% of the data

What is the purpose of the 'whiskers' in a box plot?

• To display the average

• To show the median

• To indicate the interquartile range

• To represent the minimum and maximum values

How much of the data does each section of the box plot represent?

• 10%

• 25%

• 50%

• 75%

Where is the data most alike in a box plot?

• In the whiskers

• In the interquartile range

• At the maximum value

• At the minimum value

What is the significance of the interquartile range in data analysis?

• It indicates where data is most alike

• It highlights the most variable data

• It shows the total range of data

• It represents the average of the data