Sleep related groaning, also called catathrenia, causes you to groan vocally while you sleep. Sleep related groaning is a long-lasting disorder that often occurs nightly. The groaning sound is usually quite loud. Your breathing becomes unusually slow during a groaning episode. You take in a slow, deep breath.
The Gini coefficient (or Gini ratio) is a summary statistic of the Lorenz curve and a measure of inequality in a population.he Gini coefficient (or Gini ratio) is a summary statistic of the Lorenz curve and a measure of inequality in a population.
The leading coefficient of a polynomial is the coefficient of the leading term, therefore it would be: 4. The degree of a polynomial is the degree of the leading term, therefore it would be: 3. Since the degree is 3, it would be a cubic function. Source(s): shih rips Â· 10 years ago.