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Histograms w/ Graphing Calculator quiz

Control buttons has been changed to "navigation" mode.
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  • What is the first step to create a histogram on a TI-84 calculator?
    Input your data into a list by pressing the STAT button, selecting EDIT, and entering your numbers.
  • How do you access the STAT PLOT menu on a TI-84 calculator?
    Press the 2nd key and then Y= to access the STAT PLOT menu.
  • Which graph type should you select in STAT PLOT to create a histogram?
    Select the histogram option, which is represented by a bar graph icon.
  • What does the ZoomStat (option 9) function do when creating a histogram?
    ZoomStat automatically adjusts the window to fit your data and display the histogram.
  • How can you adjust the class width for your histogram on the TI-84?
    Change the Xscl (x scale) value in the WINDOW settings to your desired class width.
  • What should you set Xmin and Xmax to in the WINDOW settings?
    Set Xmin to the minimum value of your data set and Xmax to a value near the maximum.
  • What does the TRACE button do when viewing a histogram on the TI-84?
    The TRACE button allows you to toggle through each class and see their frequencies and class limits.
  • How do you correct a mistyped number when entering data into a list?
    Use the up button to select the incorrect entry and type over it with the correct number.
  • Is it necessary to enter data in order when inputting into the TI-84 list?
    No, you can input the numbers in any order as they appear in your data table.
  • What does setting the Ymin and Ymax in the WINDOW function affect?
    Ymin and Ymax control the vertical scale, adjusting how tall the bars appear in the histogram.
  • What does a 'skewed right' histogram look like?
    A skewed right histogram has data peaking to the left and trailing off to the right.
  • What is a normal distribution in the context of histograms?
    A normal distribution appears as a symmetrical, bell-shaped curve in the histogram.
  • What does a uniform distribution look like in a histogram?
    A uniform distribution has bars of roughly equal height, indicating data is evenly spread.
  • What does the 'n' value shown when tracing a histogram bar represent?
    The 'n' value represents the frequency (f) of data points within that class interval.
  • Why is using a graphing calculator helpful for creating histograms with large data sets?
    It automates the process, saving time and reducing errors compared to doing it by hand.