A correlation describes a relationship between two variables. Unlike descriptive statistics in previous sections, correlations require two or more distributions and are called bivariate (for two) or multivariate (for more than two) statistics. There are different types of correlations that correspond to different levels of measurement. The first correlation you'll study requires that the two variables be measured at the interval or ratio level. The full name of this statistic is the Pearson product-moment correlation coefficient, and it is denoted by the letter, r. In research reports, you'll see references to Pearson r, correlation, correlation coefficient, or just r.
Winston Churchill was born on 30 November 1874, in Blenheim Palace, Oxfordshire and was of rich, aristocratic ancestry. Although achieving poor grades at school, his early fascination with militarism saw him join the Royal Cavalry in 1895.
Arthur Neville Chamberlain was born in Birmingham, England, on March 18, 1869. Neville Chamberlain was Prime Minister of Great Britain in September 1939 at the start of World War II. In May 1940, after the disastrous Norwegian campaign, Chamberlain resigned and Winston Churchill became prime minister. French general who led the French in their fight against Germany. After World War II, he became president of France. William King. Prime minister of Canada joined World War 2 beside Great Britain when the war started.