Probability, 2nd semester (2022)

The following M & M colors are in the bowl:
4 yellow, 6 orange, 3 green, 5 blue, 2 brown.
What is the probability of selecting a brown candy?

• 2/18
• 1/9
• 2/20
• 1/10

What is the probability of rolling an even number on a dice. The dice is numbered 1-6.

• 3/6
• 1/2
• 1/6
• 5/6

What is the probability of getting any letter that is not A?

• 6/8
• 3/4
• 2/8
• 1/4

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 5/6
• 1/2
• 1/3
• 1/6

A box contains 3 black pens, 7 blue pens, and 5 red pens. Without looking, P(red or black)

• 8/15
• 15/225
• 5/15
• 3/15

The following M & M colors are in the bowl:
4 yellow, 6 orange, 3 green, 5 blue, 2 brown.
P( Yellow or green)

• 1/40
• 7/20
• 6/19
• 1/38

A bag of marbles contains 5 red, 7 purple, and 3 blue marbles. If one marble is chosen at random, what is the probability that the marble is NOT blue?

• 4/5
• 1/5
• 3/5
• 2/5

Deion has two bags of marbles. In the bag labeled ‘A’, he has 3 green, 4 blue and 10 yellow marbles. In the bag labeled ‘B’, he has 13 green, 5 blue, and 12 yellow marbles. Deion wants the bag with the highest probability of selecting a blue marble. Which of the following statements is true?

• It does not matter which bag he chooses because the probabilities are the same.
• He should choose Bag B because there are fewer blue marbles.
• He should choose Bag A because the probability of selecting a blue marble is higher.
• He should choose Bag B because the probability of selecting a blue marble is higher.

If I flip a coin 10 times, how many times should I get heads?

• 1
• 10
• 3
• 5

If you spin the spinner 90 times, how many times should the number 3 be selected?

• 9
• 15
• 16
• 30