• An explanationofwhat a normal distribution means, including its shape and features.
• Explain what it means when the normal distribution has a mean of 80 and a standard deviation of 14 that is above 90. Explain how this changes when the area is between 100 and 110.
• Explain what it means when a score is in the 25th percentile of a normal distribution with a mean of 100 and a standard deviation of 15.