HW 3.6 Conditional Probability

Conditional probability is...

• to find the P of BOTH events occurring together

• to find the P of one event OR another event occurring

• to find the P of ONE event

• to find the P of one event GIVEN another event

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.4

Find P(tails | rolling a 3)

• $\frac{6}{12}$

• $\frac{12}{6}$

• $\frac{1}{12}$

• $\frac{2}{6}$

Answer explanation

$\frac{P\left(A\ and\ B\right)}{P\left(B\right)}$

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

Find P(tails and rolling a 3)

• $\frac{6}{12}$

• $\frac{12}{6}$

• $\frac{1}{12}$

• $\frac{2}{6}$

Answer explanation

where do tails and 3 intersect?

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.CP.A.2

CCSS.HSS.CP.B.8

Find P(Clash of clans | among us)

•  $\frac{261}{555}$  

•  $\frac{261}{376}$  

•  $\frac{376}{261}$  

•  $\frac{127}{261}$  
  

Answer explanation

 $\frac{P\left(A\ and\ B\right)}{P\left(B\right)}$  

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

Find P(Adult AND skittles)

•  $\frac{27}{194}$  

•  $\frac{104}{194}$  
  

•  $\frac{110}{194}$  
  

•  $\frac{83}{194}$  
  

Answer explanation

Where do adults and skittles meet?

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.ID.B.5

Find P(M&M | kid)

•  $\frac{7}{194}$  

•  $\frac{90}{194}$  

•  $\frac{7}{90}$  

Answer explanation

 $\frac{P\left(A\ and\ B\right)}{P\left(B\right)}$  

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

CCSS.HSS.CP.A.4

CCSS.HSS.ID.B.5

What is the correct conditional Probability formula?

• $P\left(A\right)\times P\left(B\right)$

• $\frac{P\left(A\ and\ B\right)}{P\left(B\right)}$

• $\frac{P\left(B\right)}{P\left(A\ and\ B\right)}$

• $P\left(A\right)+P\left(B\right)$

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.8

P(A) = 0.6. Find P(not A)

• 0.6

• 0.24

• 0.10

• 0.4

Answer explanation

 $P\left(A\ not\right)=1-P\left(A\right)$  

Tags

CCSS.HSS.CP.A.1

event C = rolling a die and getting a 3 or 5. What outcomes fall into P(not C)

• 3, 5

• 1,2,3

• 3,5,7

• 1,2,4,6

Answer explanation

what numbers are on a dice besides 3 and 5

Tags

CCSS.HSS.CP.A.1

The probability of using Apple Music is 0.75. What is the probability of not using it?

• 0.25

• 0.75

• 0.1875

• 0.5

Answer explanation

P(not Apple Music) = 1 - P(Apple Music)

Tags

CCSS.HSS.CP.A.1