Read, translate and memorize the following words. Use them in the sentences

Differ, permanent, distinguish, annual

3.Read and translate the following sentences:

1. The twins look alike, but they differ in temperament. His views differ considerably from those of his parents. The findings of the various studies differ significantly/markedly/radically. The incidence of the illness differs greatly between men and women. Economists differon the cause of inflation. I beg to differ with you on that point. 2. She is looking for a permanent place to stay. Are you looking for a temporary or a permanent job? The disease can cause permanent damage to the brain. Our office is in a permanent state of chaos. 3. He's colour-blind and can't distinguish (the difference) between red and green easily. I sometimes have difficulty distinguishing Spanish from Portuguese. It's important to distinguish between business and pleasure. It's not the beauty so much as the range of his voice that distinguishes him from other tenors. 4. Companies publish annualreports to inform the public about the previous year's activities.

4.Read and translate the texts:

Before you begin to think about the three Ws – which statistical test, when to use it, and why – you need to know the meaning of five indispensable words: population, sample, parameter, statistic and variable. Briefly, a population is the complete set of cases that are of interest to you; a sample is the smaller part you have selected from the population to examine; a parameter is a numerical measure that describes some characteristic of a population; a statistic is a numerical measure that describes some characteristic of your sample; and a variable is any attribute, trait or characteristic of interest that varies in different circumstances or between cases.