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Date: 17-2-2019
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Date: 13-2-2019
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The median is the middle value in a set of numbers. In the set [1,2,3] the median is 2. If the set has an even number of values, the median is the average of the two in the middle. For example, the median of [1,2,3,4] is 2.5, because that is the average of 2 and 3.
The median is often used when analyzing statistical studies, for example the income of a nation. While the arithmetic mean (average) is a simple calculation that most people understand, it is skewed upwards by just a few high values. The average income of a nation might be $20,000 but most people are much poorer. Many people with $10,000 incomes are balanced out by just a single person with a $5,000,000 income. Therefore the median is often quoted because it shows a value that 50% of the country makes more than and 50% of the country makes less than.
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لصحة القلب والأمعاء.. 8 أطعمة لا غنى عنها
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حل سحري لخلايا البيروفسكايت الشمسية.. يرفع كفاءتها إلى 26%
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بالفيديو: منها رفع الراية الزينبية السوداء في صحن العقيلة (ع).. فعاليات متنوعة تقيمها العتبة الحسينية ضمن فعاليات مهرجان الليالي الزينبية
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