Probability Review

6 red pens & 4 blue pens. You pick one, keep it and then pick another. What is the probability both will be red?

• $\frac{1}{3}$

• $\frac{1}{30}$

• $\frac{9}{25}$

• $\frac{1}{36}$

Joan flipped a coin 100 times. The coin landed on tails 36 times. Based on her results, which is true?

• The coin landed on heads less than expected.

• The coin landed on heads more than tails.

• The coin landed on tails more than expected.

• The coin landed on heads less than tails.

2 lollipops, 4 candy bars, 6 chewy candies. What are the total number of possible combinations, if you get one of each?

• 12

• 15

• 24

• 48

You spin the spinner and roll a number cube. What is the probaility of getting red and the number 4. 

•  $\frac{2}{6}$ 

•  $\frac{1}{6}$ 

•  $\frac{1}{12}$ 

•  $\frac{1}{36}$ 

Jesse's probability of throwing a curve ball is 1/4. If he throws 20 pitches, how many should be curveballs?

• 1

• 5

• 2

• 10

Independent or Dependent? Flipping a coin two times.

• Independent

• Dependent

Independent or Dependent? Picking a jelly bean out of a bag, eat it, then pick another.

• Independent

• Dependent

What is the likelihood of rolling an even number on a number cube?

• Unlikely

• Equally likely as unlikely

• Likely

• Certain

What is the likelihood of spinning a spinner with only blue spaces and landing on blue?

• Unlikely

• Equally likely as unlikely

• Likely

• Certain

What is the likelihood of rolling a number greater than 5 on a number cube?

• Unlikely

• Equally likely as unlikely

• Likely

• Certain