1 * Sea temperatures range from 16Â°C/61Â°F to 23Â°C/74Â°F. * 2  Average number of sunshine days ranges from 95 hours per month during the winter in the Black Sea Coast Region to 375 hours per month in the Aegean, Mediterranean and Central Anatolia Regions.
Chi-square distribution, showing X 2 on the x-axis and P-value on the y-axis. A chi-squared test, also referred to as test (or chi-square test), is any statistical hypothesis test in which the sampling distribution of the test statistic is a chi-square distribution when the null hypothesis is true.hen T has a chi-square distribution with n â 1 degrees of freedom. For example if the sample size is 21, the acceptance region for T for a significance level of 5% is the interval 9.59 to 34.17.
Statisticians use summary measures to describe the amount of variability or spread in a set of data. The most common measures of variability are the range, the interquartile range (IQR), variance, and standard deviation. View Video Lesson The Range. The range is the difference between the largest and smallest values in a set of values. For example, consider the following numbers: 1, 3, 4, 5, 5, 6, 7, 11. For this set of numbers, the range would be 11 - 1 or 10. The Interquartile Range (IQR) The interquartile range (IQR) is a measure of variability, based on dividing a data set into quartiles. Quartiles divide a rank-ordered data set into four equal parts. The values that divide each part are called the first, second, and third quartiles; and they are denoted by Q1, Q2, and Q3, respectively. 1  Q1 is the middle value in the first half of the rank-ordered data set. 2  Q2 is the median value in the set. 3  Q3 is the middle value in the second half of the rank-ordered data set.