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.
Distribution of family income-Gini index measures the degree of inequality in the distribution of family income in a country.The more nearly equal a country's income distribution, the lower its Gini index, e.g., a Scandinavian country with an index of 25.istribution of family income-Gini index measures the degree of inequality in the distribution of family income in a country.