STATISTICAL TECHNIQUES AND TOOLS
SAMPLING DISTRIBUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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8
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9
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13
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21
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Detailed explanation-1: -In this case, the upper half of the data is: 37, 38, 42, 46 The median of this data is (38+42)/2 = 40. The interquartile range (IQR) is the difference between Q3 and Q1. In this case, IQR = 40-27 = 13. Therefore, the answer is 13.
Detailed explanation-2: -The upper quartile, or third quartile (Q3), is the value under which 75% of data points are found when arranged in increasing order. The median is considered the second quartile (Q2). The interquartile range is the difference between upper and lower quartiles.
Detailed explanation-3: -The upper half of data is the set above the median. The median for the upper half of data 53, 54, 54, 55 53, 54, 54, 55 is the upper or third quartile. In this case, the third quartile is 54 .