L3

• The z-score is a measure of how many standard deviations a data point is from the mean, calculated by subtracting the mean from the data point and then dividing the result by the standard deviation
• The standard normal distribution is a bell-shaped curve with a mean of 0 and a standard deviation of 1, used to model various types of data
• The standard normal distribution is a bell-shaped curve with a mean of 0 and a standard deviation of 1, used to model various data types like heights, weights, and test scores

  
• Characterizing populations involves measures of central tendency like mean, median, mode, and dispersion measures like variance and standard deviation
• For the normal distribution, the mean (μ) represents central tendency, while dispersion is measured by σ, σ2, standard error, and the 95% confidence interval
• measuring distributions

  1. Central Tendency
  2. Dispersion
• central tendency


  µ
• measures of dispersion

  • SE
  • population variance 'σ2
  • standard deviation ''σ
  • 95% confidence interval
• The z-score is a measure of how many standard deviations a data point is away from the mean, calculated by subtracting the mean from the data point and then dividing the result by the standard deviation

  
• The standard normal distribution is a bell-shaped curve with a mean of 0 and a standard deviation of 1, used to model various types of data like heights, weights, and test scores

  
• A normal deviate tells how many standard deviations a data point is from the mean, aiding in finding the probability of a data point falling within a given range of values
• The table of the standard normal distribution shows the proportion of a normal distribution that lies beyond a given normal deviate
• The table can be used to find the probability of a data point falling within a given range of values
• The Hourglass Metaphor of Scientific Writing: Introduction, Discussion, Methods, Results, Title, Authors, Acknowledgments, Literature Cited
• The standard normal distribution is a bell-shaped curve with a mean of 0 and a standard deviation of 1, used to model various data like heights, weights, and test scores

  
• The table of the standard normal distribution shows the proportion of a normal distribution beyond a given normal deviate, aiding in finding the probability of a data point falling within a specific range of values