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A-level Notes on Probabiltiy £2.99   Add to cart
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Lecture notes

A-level Notes on Probabiltiy
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Knowledge Organiser for A2 Probability. Includes notes on Venn Diagram, Two-way tables and Probability Trees as well as an example question. Complete set of Venn Diagrams. Based on WJEC exam board but can be applied to any questions.

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  • May 10, 2024
  • 1
  • 2023/2024
  • Lecture notes
  • N/a
  • Probability

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Venn dioarans
AuoionG
Qxampu queohion6(Q-it ygusal waec kebu)
mutiplicaion law P(a)=o3 Pe)=os P(AUE)=o
P(AnB)= P() xPB) as Shos eventsA anod B ac not IndeperdRNG


PA) P(e) PAnB) P(AUB) Adoibion laws P(AUB) =P) +PCa)- (AnE) Plang) =P(A) x PB)

Caenaaisad o+ o3 + os -P(A nB)
P(anB): o3xoS
P(A UB)- P(a) + Pe) P(an B)


Mukually 2xutive
PAOB)=o-8 to-S -o4
P(AUB)- P4)+ Ps)
P(a) P(8) P(A'AB) P(Ans)
oker eguoions

PA)=
.. hot inpindb
1 -PA)
lb) Determine value of
P(AlB) = P(AnB) i) PAIB)
PlB) n wJEC formala
ii) P(UB)
bogket.

P(A'uB) P(AUB) P(AUB) -P(A'N8) mubualy «UMire
i)P(A'lB) = P(ane)
P(B)
PAUB) = P9
Pogr Mandy P(a'nB)= o4
S
without venn oiagam.
P(A1B)= PAOB) P('VB)=|-P(A|B)
P(AcB)
P(B)
=|-/s
=4/s
talbes

used ko oat number af otcomes So as to k probaaiiey maklemaiol representaion nts th are randem in nalure ü) Vennaingam
calcuse
P(AlvB)= o$to-l+o-4 = O-$
C-takes camisong Gacn brancn<= wihouto ouing
C P-tueo A P(AUR)= P()tP(S)-
B' Probobiiby A gien B oret? P(4NB)

P(aUp)= P(A PB)-P(AnB)
P(AIB)G-04 Xo.
=OsoS = o-to.5-P(B-P(AnB))
- t2-ps-o-)

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