Using appropriate secondary data from a reliable source, students are expected to

demonstrate their understanding on continuous probability distribution by the following details:

1. Determination of normality of the data and the shape of the distribution.
2. Demonstration of transformation to standard normal distribution.
3. Finding the probability of certain range of values.
4. Demonstration of understanding of confidence intervals.

Relate the explanation to the dataset selected. Detailed explanation, working and diagram are expected whenever necessary.