Independent Probability

There are 14 tiles with one letter from the word MATHEMATICIANS on each. Find the probability of randomly choosing the letter "M".

• 1/2

• 1/7

• 1/14

• 2/7

Tags

CCSS.7.SP.C.7B

A bag contains 8 blue marbles, 7 green marbles, and 5 yellow marbles. Without looking you reach into the bag and draw one marble. What is the probability of NOT drawing a blue marble? P(not blue)

• 3/4

• 7/20

• 3/5

• 2/5

A bag contains 8 blue marbles, 7 green marbles, and 5 yellow marbles. Suppose you drew one marble from the bag above, replaced it and then drew a second marble. What is the probability of drawing a green, and then a blue marble. P(green, blue)

• 4/5

• 43/400

• 15/20

• 7/50

What is the probability of spinning the spinner three times and having all three spins be greater than 5?

• 5.3%

• 12.5%

• 1.6%

• 4.8%

A jar of coins has 8 pennies, 5 nickels, 1 dime, and 7 quarters. Aaron and Adelle do not agree what the probability of drawing a quarter, replacing it, and drawing another quarter is. P(quarter, quarter). Who is correct?

• Aaron says the probability is 1/9

• Adelle says the probability is 1/10

Ricardo has the spinner pictured here and a bag of marbles filled with 2 red marbles, 3 green marbles, and 3 blue marbles. What is the probability that Ricardo spins red on the spinner and picks a red marble out of the bag?

• 1 ⁄ 16
• 1 ⁄ 2
• 1 ⁄ 4
• 1 ⁄ 8

• 1/4

• 1/3

• 1/6

• 1/36

Tags

CCSS.HSS.CP.B.7

• 1/2

• 1/6

• 1/8

• 1/36

A bag contains 5 striped cubes, 3 dotted cubes, 4 white cubes and 3 red cubes. What is the probability of drawing a red cube, replacing it, and then drawing a white cube?

• independent

• dependent

Tags

CCSS.HSS.CP.A.5

Independent probability happens when the probability of the first event does not affect the probability of the second event.

• True

• False

Tags

CCSS.HSS.CP.A.5