15.7.2. Statistical Analysis

Try these first

1. 1.

   What is the mean of the following rainfall data: [10 mm, 20 mm, 30 mm]?

   Hint

   Add all numbers and divide by the total count.

2. 2.

   What is the mode of the dataset: [5 mm, 5 mm, 10 mm, 15 mm]?

   Hint

   Find the most frequently occurring value.

3. 3.

   What is the average value of a dataset called?

   • Median
   • Mode
   • Mean

   Hint

   It represents the total average.

4. 4.

   True or False: A high standard deviation indicates that data points are closely clustered around the mean.

   • True
   • False

   Hint

   Think about how spread apart the values are.

5. 5.

   Given a rainfall dataset: [15 mm, 20 mm, 25 mm, 30 mm, 50 mm], calculate mean, standard deviation, skewness, and interpret the data.

   Hint

   First find the mean, then assess variations from this point.

6. 6.

   Analyze the rainfall data: [5 mm, 15 mm, 25 mm, 30 mm, 70 mm] and discuss the implications of its kurtosis being 3.5.

   Hint

   Consider how pointy the data shape looks compared to normal.