Practice, difficulty 1 of 3
Kurtosis or excess kurtosis?
An old statistics package reports the kurtosis of a dataset as (it does not subtract 3). What is the excess kurtosis, and are the tails heavier or lighter than a normal distribution's?
Practice
Practise until it sticks
Choose a topic, a skill or a difficulty. Calculation exercises have new versions with fresh numbers once you have solved them, so you can practise the method rather than memorise an answer.
← Back to the list · from Shape: skewness and kurtosis
Not started