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28.10.2020 •
Mathematics
Suppose you scored an 80 on a measure where the mean is 65 and the standard deviation is 5. How many standard deviations from the mean is your score
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Ответ:
The score is 3 standard deviations from the mean
Step-by-step explanation:
To find this, we simply calculate the z-score
Mathematically;
z-score = (x-mean)/SD
In this question , x = 80
mean = 65
SD = 5
Thus;
z-score = (80-65)/5 = 15/5 = 3
Ответ:
Step by Step
3/20=0.15
25.% (move the decimal back two places) 0.25
0.15+0.25=0.40