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Last updated 4:09 PM on 6/1/26
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9 Terms

1
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Anomalies from mean and standard deviation

mean ± 2 sd

2
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anomalies from medians and iqr

uq + 1.5 x iqr

lq - 1.5 x iqr

3
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What do you use as p in pmcc hypothesis test

roh / ρ

4
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What to use as variance in hypothesis tesing the mean

root of ( old variance / sample size )

5
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formula for the z term in standardising normal distribution

(old x - mean) / standard deviation

6
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how to find angle of vector with any axis

coordinate of axis wanted (eg y coordinate for positive y axis) / magnitude of vector

7
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finding angle between 2 vectors

(cos x) = (u ‘ v) / |u| x |v|

8
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if a curve is concave, the area found by trapezium rule is….

underestimate

9
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how to integrate by t