Conditional Probability

You pick a marble from this bag.
What is the probability you will choose either a black or white marble?

• 3/5
• 9/100
• 1/10
• 2/5

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

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.6

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

CCSS.7.SP.C.6

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.6

CCSS.7.SP.C.7

Your drawer contains 6 red socks and 10 blue socks. It's too dark to see which are which, but you grab two anyway. What is the probability that both socks are red?

• 5/15
• 36/256
• 1/3
• 1/8

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.8

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

• .2
• .2222
• .10
• .5

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

CCSS.7.SP.C.5

CCSS.7.SP.C.6

CCSS.7.SP.C.7

CCSS.7.SP.C.8

What percentage of girls have blonde hair?

• 30%
• 32%
• 29%
• 40%

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

11. A coin is flipped and a die is rolled. What is the probability that the coin lands heads up and the number rolled is 1?

• 6.3%
• 25.0%
• 8.3%
• 2.8%

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8