Conditional Probabilities

What is the probability a person was in third class given that they survived?

• .2521
• .2504
• .0922
• .3230

What is the probability a randomly selected person was in first class or second class?

• 27.7%
• 47.1%
• 72.3%
• 14.8%

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

• .7273
• .4
• .16
• .22

What is the probability of choosing a Spade given the card chosen is black?

• 50%
• 25%
• 75%
• 100%

40% of a class are women. The probability that a woman likes the color blue is 10%. What is the probability that a person chosen from the class likes blue given a woman is chosen?

• 4
• .4
• .1
• .25

What is the probability that a female is chosen given they like a Toyota? 

• .525
• .4627
• .6774
• .3143

What is the probability that a student plays an instrument?

• .55
• .5
• .45
• .4

What is the probability that a student plays on a sports team given they don't play an instrument? 

• .7273
• .8
• .55
• .2222

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

• 2.14
• .24
• .4
• .8571

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

• 0.5
• 0.45
• 0.55
• 0.35