5 2 variability
Download
1 / 11

5.2 Variability - PowerPoint PPT Presentation


  • 89 Views
  • Uploaded on

5.2 Variability. Common Core Investigation 5.2. Objective. Today I will compare two box-and-whisker plots and gain information from the data distributions. Vocabulary.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about '5.2 Variability' - seamus


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
5 2 variability

5.2 Variability

Common Core Investigation 5.2


Objective
Objective

  • Today I will compare two box-and-whisker plots and gain information from the data distributions.


Vocabulary
Vocabulary

  • Measures of variability- numbers that indicate how spread out a set of scores is along a distribution. Scores can be bunched up around the mean or spread out significantly along the distribution. The three measures of variability are range, standard deviation, and variance.

  • Measures of Center - Plotting data in a frequency distribution shows the general shape of the distribution and gives a general sense of how the numbers are bunched. The mean, median, and mode can be used to represent the "center" of the distribution.

  • Measures of Shape - For distributions summarizing data from continuous measurement scales, statistics can be used to describe how the distribution rises and drops.


Earnings at each restaurant
Earnings at each restaurant

  • Tim is on the wait staff at the Casual Café, and Dan is on the wait staff at Bountiful Bistro. The box plot below display the amounts they earn in tips on weekends during the past six months.


5 2 variability


5 2 variability


5 2 variability

  • Are either of the box plots symmetric?

  • Compare how the amounts of Tim’s and Dan’s tips are distributed.

  • Which, if any, of the box plots shows clusters of data?

  • Use evidence of clusters or no clusters to compare Tim’s and Dan’s tips.

  • Overall, who do you think earns more tip money? Explain.


Bowling alley
Bowling Alley

  • Sarah and DeShawn work part-time at the bowling alley. The box plots show the number of hours they have worked each week this year.

  • Find the ranges and interquartile ranges of the hours Sarah and DeShawn have worked, and use them to compare how their hours varied.


Bowling alley1
Bowling Alley

  • Sarah and DeShawn work part-time at the bowling alley. The box plots show the number of hours they have worked each week this year.

  • Compare how the amounts of hours Sarah and Deshawn worked are distributed.


Bowling alley2
Bowling Alley

  • Sarah and DeShawn work part-time at the bowling alley. The box plots show the number of hours they have worked each week this year.

  • Does either box plot show clustering or symmetry of data? If so, what does that show about the numbers of hours worked?


Homework
Homework

  • Yellow Packet Pg. 32: 7-11, 15-16