RESEARCH METHODOLOGY

Detailed explanation-1: -Also, notice how the 5th decile is also the median of the observation. Looking at the data set in the table, the median, which is the middle data point of any given set of numbers, can be calculated as (76 + 78) / 2 = 77 = median = D5. At this point, half of the scores lie above and below the distribution.

Detailed explanation-2: -The median is the point on the scale that divides the distribution of scores in half (half of the scores fall above the median and half fall below). The mode is simply the score that occurs most frequently.

Detailed explanation-3: -Q2 (the median) is the 50th percentile and shows that 50% of the scores are less than 75, and 50% of the scores are above 75.