Question

if xifi = 1048 and N = 30 then find the mean​

Answer 1

Answer:

Step-by-step explanation:

XiFi = 1048

N = Sum of Fi = 30

Mean = XiFi/Fi

= 1048/30

= 34.73

Answer 2

Answer:

Required mean is 34.93

Step-by-step explanation:

We know, mean

$= \frac{x_if_i}{N} \\ = \frac{1048}{30} \\ = 34.93$

Therefore, required mean is 34.93.

Mean related more information:

In descriptive statistics, the mean may be confused with the median, mode, or central range, as some may be incorrectly called the "mean" (more formally, a measure of central tendency). The mean of a set of observations is the arithmetic mean of the values; however, in skewed distributions, the mean may not be the same as the mean value (median) or the most likely value (mode). For example, a small number of very high earners tend to skew the average income upwards, so that most earn below the average. In contrast, the median income is the level that half of the population falls below and half above. Regime income is the most likely income and favors a larger number of lower income earners. Although the median and mode are often more intuitive measures for such skewed data, many skewed distributions are best described by their mean, including the exponential and Poisson distributions.

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