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Everything > Maths > Flashcards

Maths Flashcards

1
Q

Variance formula + standard deviation

A

^sum (x-x bar)2/n

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2
Q

Outlier

A

Q3+k(IQR)
Q1xk(IQR)

Or mean +2s
Mean -2s

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3
Q

Sine identities

A

Tan=sin/cos

Sin2+cos2=1

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4
Q

Cosine rule

A

Length:
a2=b2+c2-2bcCos A

Angle:
b2+c2-a2/2bc

Area:
abSinC/2

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5
Q

SUVAT

A

v=u+at
s=ut+1/2at2
V2=u2+2as
s=v+u/2 *t
s=vt-1/2at2

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