Statistics

• What are the two main types of data?

  Qualitative and quantitative
• How can data be collected?

  Through surveys and experiments
• What are the different types of charts and graphs used for data representation?

  • Bar charts
  • Histograms
  • Pie charts
  • Box plots
• What is the purpose of analyzing trends in data?

  To draw conclusions from the data
• What are the measures of central tendency?

  Mean, median, mode, and range
• How does the mean provide insights into a data set?

  It represents the average value of the data
• What is the median in a data set?

  The middle value when the data is ordered
• What does the mode represent in a data set?

  The value that appears most frequently
• What is the range of a data set?

  The difference between the highest and lowest values
• What is probability terminology?

  Terms used to describe likelihood and chance
• How do you calculate simple probability?

  By dividing the number of favorable outcomes by the total number of outcomes
• What are compound probabilities?

  Probabilities that involve two or more events
• What are complementary events in probability?

  Two events that are mutually exclusive and cover all possible outcomes
• How do you interpret a bar chart?

  • Identify categories represented on the x-axis
  • Observe the height of bars to determine values
  • Compare different categories based on bar heights
• How do you interpret a pie chart?

  • Identify the whole represented by the circle
  • Observe the size of each slice to determine proportions
  • Compare slices to understand relative sizes of categories
• How do you interpret a box plot?

  • Identify the median, quartiles, and outliers
  • Understand the spread and skewness of the data
  • Compare different box plots for different data sets
• What is the significance of calculating the range in a data set?

  • Indicates the spread of the data
  • Helps identify variability
  • Useful for understanding data distribution
• How do mean, median, and mode differ in their insights into a data set?

  • Mean: Average value
  • Median: Middle value
  • Mode: Most frequent value
• How can understanding probability concepts aid in decision-making?

  • Helps assess risks
  • Informs predictions about outcomes
  • Guides strategic planning based on likelihood