Charts

• What type of data is represented by eye colour?

  Discrete data
• What type of data is represented by length?

  Continuous data
• What is a bar chart used for?


  To represent discrete data visually
• What is a histogram?


  A type of bar chart for continuous data with unequal groups
• What does frequency represent in a bar chart?


  The number of occurrences of a data point
• How is frequency related to the area of a bar in a bar chart?


  Frequency is the area of the bar
• What are examples of continuous data?


  Length, age, time, weight
• What are examples of discrete data?


  Eye colour, favourite food, type of pet
• What is the difference between discrete and continuous data?


  Discrete data consists of distinct values, while continuous data can take any value within a range
• How does a histogram differ from a standard bar chart?


  A histogram represents continuous data with unequal groups, while a bar chart represents discrete data
• What is the frequency density in a histogram?


  It is the frequency divided by the width of the interval
• Why is frequency density important in a histogram?


  It allows for comparison of different intervals regardless of their width
• What is the significance of the numbers 100, 110, 150, and 195 in the context of frequency?


  They represent specific frequency values in a dataset