Reading and drawing histograms

Lessons

• Introduction
  Introduction to Histograms
  a)

  How to read a histogram?
  
  
  b)

  How to make a histogram?
  
  

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• 1.
  The histogram shows the volume of fluid George drank each day.
  
  
  a)

  For how many days did George drink 2.0-2.9 cups of water?
  
  
  b)

  Are there more days that George drank 4.0-4.9 cups or days that George drank 6.0 to 6.9 cups?
  
  
  c)

  What is the shape of distribution?
  
  

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• 2.
  The frequency table below shows the amount of time spent outdoors each day on average for students in a kindergarten class.
  

  Minutes spent outdoor	Number of days
  1-9	4
  10-19	5
  20-29	3
  30-39	2
  40-49	1
  50-59	2

  a)

  Draw a histogram for the data above.
  
  
  b)

  How many days did the class spend outdoors for at least 10 minutes but less than 40 minutes?
  
  

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• 3.
  A survey was done to look at the number of clothing items people purchased in the last 3 years. Below is the data collected:
  9, 4, 18, 3, 8, 1, 0, 5, 16, 10, 7, 8, 2, 12, 7, 11, 3, 5, 4, 13, 20, 6, 13, 1
  a)

  Use intervals, 0-2, 3-5, 6-8, 9-11, and so on to make a frequency table.
  
  
  b)

  Use the data to complete the histogram.
  
  
  
  
  c)

  What range of purchased clothing items was the most common?
  
  
  d)

  What percentage of individuals bought 9 items or more?
  
  
  e)

  What is the shape of distribution?
  
  

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