Distribution

• What is a normal distribution?

  A symmetrical pattern of frequency data that forms a bell-shaped pattern
• How does a skewed distribution differ from a normal distribution?

  A skewed distribution is not symmetrical and clusters to one end
• What are the two types of skewed distributions?

  • Positive skew (right-skewed)
  • Negative skew (left-skewed)
• In a positive skewed distribution, where is most of the data concentrated?

  Most of the distribution of data is concentrated on the right
• What is the term for a distribution where most data is concentrated on the left?

  Negative skew
• What does a left-skewed distribution indicate about the data?

  It indicates that most of the data distribution is concentrated on the left
• What are the characteristics of positive and negative skewness in terms of mode, median, and mean?

  • Right-Skewed (Positive Skewness):
  • Mode > Median > Mean
  • Left-Skewed (Negative Skewness):
  • Mean < Median < Mode