Quiz: 11.1-11.4

A bag contains some red-colored and some blue-colored marbles. First a red-colored marble is drawn and then, without replacing the first marble, a blue-colored marble is drawn. Are the two events dependent or independent?

• Independent
• Dependent

Dependent or Independent:
You flip a coin and then roll a fair six-sided die.  The coin lands heads-up and the die shows a one.

• Dependent
• Independent

Tags

CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

CCSS.HSS.CP.B.8

There are 6 red marbles, 5 green marbles, and 4 yellow marbles in a bag. If Joe picks 2 marbles one after the other without replacement, then what is the probability that both are red in color?

• 2/5
• 1/21
• 4/25
• 1/7

What is the probability of picking a green marble if there are 5 green and 8 red?

• 5/13

• 1/2

• 6/8

• 4/5

• .2855
• .6246
• .0922
• .3230

What is the probability of choosing a Honda? 

• .5970
• .5373
• .4627
• .4030

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

• .2
• .2222
• .10
• .5

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

• 3/10
• 3/9
• 1/9
• 1/3

What is the probability that a student plays an instrument?

• 11/20 = .55

• 10/20 = .5

• 9/20 = .45

• 8/20 = .4

What is the probability that the student selected is a girl or has red hair? (Put answer in decimal form.)

• 0.55 = 55%

• 0.6 = 60%

• 0.45 = 45%

• 0.5 = 50%