Outliers are points that are surprising, or far from the rest of the points. Outliers highly influence the arithmetic mean. For instance, if you wanted to find the average height of American men and, just by chance, your sample included a guy who was 7 feet 6 inches tall, the mean would be high. A better choice here might be the median, or a trimmed mean.
Skewed data has a long tail on one side. That is, the values on one side of the mean are much farther from the mean than those on the other side. A familiar example is income. According to the Census Bureau, the mean household income in the United States in 2004 was $60,056. But while the lowest income is around $0 (which is $60,000 below the mean), the highest is well over $120,000 (which is $60,000 above the mean). Indeed, 1,699,000 households made more than $250,000. This is why income is usually reported as median, rather than mean.
Suppose you travel 120 miles and back. On the first part of your trip, you travel at 40 miles per hour. On the second part of your trip you travel at 60 mph. But the average rate is not the arithmetic mean (40 + 60)/2 = 50 miles per hour. The trip out takes three hours. The trip back takes two hours. So, you traveled 240 miles in five hours, for an average of 240/5, or 48 mph. Here you should use the harmonic mean.
This is similar to the previous problem, but it appears differently. When you average averages, the arithmetic mean is not right. For instance, suppose you want to find the average height of people in your college class. You find that the average height of women is 5 feet 4 inches and the average for men is 5 feet 10 inches. But, unless there are the same number of men and women, the overall average will not be 5 feet 7 inches.
what is the advantages and disadvantages of the battle of yorktown?
The system of patronage has very distinct advantages and disadvantages. The advantages are that you have a boss that looks after you and takes care of the problems and issues in everyday life. The disadvantages are that you are always commanded, patronized and have very little independence.
There are many advantages and disadvantages to expert power. One being, the power gets to their head. While it can be good by they know what they are talking about.
An absolute government helps provide a safety net for the economy. The disadvantages are that it controls everything in our lives, from our actions to our opinions.
yo yo
The quantity of arithmetic cannot be measured and so the density is not defined.
An arithmetic density is a population density measured as the number of people per unit area of land.
There are a great number of advantages and disadvantages of Arithmetic mean. One disadvantages is that it is not accurate.
The arithmetic population density of Phoenix, Arizona is 3119.94 per square mile.
arithmetic density, agricultural density, physiological density, urban density, residential density
arithmetic density, agricultural density, physiological density, urban density, residential density
0.73%
Yes; the arithmetic density is based over the entire area while physiologic density is over farmable land .
China
yeasdhfd
The arithmetic density of a population is the total number of people in proportion to the area of land (land size) The physiological density of a population is the total population in proportion to the area of arable land. Therefore, the arithmetic density of a population is always lower than the physiological density, since a land's arable portion can only be a subset of it's full size. Arithmetic = (Population/Full size) Physiological = (Population/Arable zones)
False.