Conditional Probabilities - Two-way Tables

The outcome of one event does not influence the outcome of the other event

• independent event

• tree diagram

• simple event

• odds

Tags

CCSS.L.9-10.6

CCSS.W.11-12.2D

CCSS.W.9-10.2D

CCSS.L.11-12.6

CCSS.L.8.6

What is the probability that they speak French given they are a girl? 

• 2.14

• .24

• .4

• .8571

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

What is the probability that the person picked will be a boy given they speak German? 

• .7273

• .4

• .16

• .22

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

What is the probability that a student does not play on a sports team? 

• .5

• .45

• .55

• .15

Tags

CCSS.7.SP.C.5

What is the probability that a student does not play a sport given they do not play an instrument?

• 0.7

• 0.778

• 0.35

• 0.222

The probability that a student does not play on a team sport is 0.5. The probability that a student does not play on a team sport given they do not play an instrument is 0.778.

The events "does not play on a team sport" and "does not play an instrument" are __________.

What percentage of students do chores?

• 64%

• 81%

• 36%

• 31%

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

CCSS.7.SP.A.1

CCSS.7.SP.A.2

What is the probability a student does chores given they have an allowance?

• 52%

• 81%

• 23%

• 72%

The probability a student does chores is 64%. The probability a student does chores given they have an allowance is 72%.

The events "Do Chores" and "Allowance" are ___________.

What is the probability of a passenger on the Titanic surviving given they were in first class?

• .2855

• .6246

• .0922

• .3230

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.6

CCSS.7.SP.C.7