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Criado por McKenzie Layton
quase 2 anos atrás
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Questão | Responda |
Mean | Statistical term that is found by: Sum of all figures ÷ Number of figures, 574–575. |
Weighted mean | Used to find an average when values appear more than once, 574. |
Median | Statistical term that represents the central point or midpoint of a series of numbers, 575–576. |
Mode | Value that occurs most often in a series of numbers, 576. |
Frequency distribution | Shows by table the number of times event(s) occurs, 577. |
Bar graph | Visual representation using horizontal or vertical bars to make comparison or to show relationship on items of similar makeup, 578–580. |
Line graph | Graphical presentation that involves a time element. Shows trends, failures, backlogs, and the like, 580. |
Circle graphs | A visual representation of the parts to the whole, 581–582. |
Index numbers | Express the relative changes in a variable compared with some base, which is taken as 100, 582–583. |
Price relative | The quotient of the current price divided by some previous year’s price—the base year—multiplied by 100, 582. |
Measure of dispersion | Number that describes how the numbers of a set of data are spread out or dispersed, 584–586. |
Range | Difference between the highest and lowest values in a group of values or set of data, 584. |
Standard deviation | Measures the spread of data around the mean, 584–585. |
Normal distribution | Data are spread symmetrically about the mean, 585–586. |
Empirical Rule | For a normal distribution, nearly all the data fall within three standard deviations of the mean, 586. |
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