Alg II Probability Review

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

• 5/11

• 5/6

• 1/3

• 5

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

The probability of it raining today is 30%.  What is the probability that it will NOT rain?

• 30%

• 70%

• 100%

• 0%

Tags

CCSS.7.SP.C.5

Is the spinner more likely or less likely to land on green than yellow?

• more likely

• less likely

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

A farm has 5 brown cows and 10 white cows. A fence is open and two cows escape. What is the probability that it will be a brown cow, then a white cow?

• 1/9

• 2/9

• 5/21

• 10/21

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

• .2855

• .6246

• .0922

• .3230

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.6

CCSS.7.SP.C.7

Mary is a good student. The probability that she studies and passes her test is 3/5. If the probability that she studies is 8/9. What is the probability that she passes given that she studies? 

• 27/40

• 1.48

• .008

• .0593

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

CCSS.HSS.CP.B.8

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

• .2

• .2222

• .10

• .5

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

Determine if the events are independent or dependent.

• Independent

• Dependent

The weather forecaster predicted it will be 4/5 chance of rain for Monday and 2/3 chance of rain for Tuesday. What is the probability it will rain both days?

• 1/2

• 20/15

• 8/15

• 6/8

P(A)=2/5 P(B)=1/5 P(A and B)=2/25

• Dependent

• Independent