FORESTRY
AGRICULTURAL STATISTICS AND ECONOMICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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2.5%
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2.35%
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16%
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13.5%
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Detailed explanation-1: -Therefore, the T scorescale from 20 (-3 SD) to 80 (+3 SD) has a mean of 50 and a SD (standarddeviation) of 10. The T score has two major advantages: it is always a wholenumber, and it is never a negative number.
Detailed explanation-2: -Standard Score – Standard scores have an average (mean) of 100 and a standard deviation of 15. Scaled Score – Scaled scores have an average (mean) of 10 and a standard deviation of 3. T-Score – T-scores have an average (mean) of 50 and a standard deviation of 10.
Detailed explanation-3: -Standard Deviation • Describes how far most scores fall from the mean. Example: If the mean is 100 and the standard deviation is 15, that means that most respondents scored within 15 points of the mean (above or below). 100-15 = 85 100+15 = 115 Thus, the average range is 85-115.