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The highest incomes to be considered middle class are in Hawaii, at $82,630, and then New York and Washington, D.C., where the minimum middle class annual income is $81,396.
Image source: Getty Images. Lower class, middle class, and upper class are all widely used, but rarely defined terms. For some people, lower class means living in poverty, upper class means a life ...
The mean for the morning class is 80 and the mean of the afternoon class is 90. The unweighted mean of the two means is 85. However, this does not account for the difference in number of students in each class (20 versus 30); hence the value of 85 does not reflect the average student grade (independent of class).
For example, per capita income is the arithmetic average income of a nation's population. While the arithmetic mean is often used to report central tendencies, it is not a robust statistic: it is greatly influenced by outliers (values much larger or smaller than most others).
The expected value of a random variable is the weighted average of the possible values it might take on, with the weights being the respective probabilities. More generally, the expected value of a function of a random variable is the probability-weighted average of the values the function takes on for each possible value of the random variable.
The unweighted average is actually much higher than this, however. In 2022, the figure was 1.12 percent. ... For example, if you made a one-time investment of $10,000 in a fund with a 1 percent ...
2-person family middle-class income range: $47,764.30 to $142,580 3-person family middle-class income range: $53,187.95 to $158,770 4-person family middle-class income range: $61,159.61 to $182,566
On the 2008 test, female students continued to have higher average reading scores than male students at all three ages. The gap between male and female 4th graders was 7 points in 2008. By 12th grade, there was an 11-point gap between males and females. [11]