METHODS OF DATA ANALYSIS
MEASURES OF DISPERSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Mark off the lowest number
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Mark off the highest number
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Find the Middle
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Arrange the number from Least to Greatest
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Detailed explanation-1: -For a small data set, you first count the number of data points (n) and arrange the data points in increasing order. If the number of data points is uneven, you add 1 to the number of points and divide the results by 2 to get the rank of the data point whose value is the median.
Detailed explanation-2: -from least to greatest or greatest to least; the median is the data value in the middle; if there is an even number of data values in the set, the median is the mean of the two middle values.
Detailed explanation-3: -The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to greatest. The mode is the number that occurs most often in a data set.
Detailed explanation-4: -To find the median, first arrange the numbers in order, usually from lowest to highest. For example, in a data set of 3, 13, 2, 34, 11, 26, 47, the sorted order becomes 2, 3, 11, 13, 26, 34, 47.