Independent/Dependent Probability

A box contains all the letters of the word U N D E R S T A N D. What is the probability of selecting an 'N' first and a 'D' next, if the first letter is replaced?

• 3/50
• 1/25
• 1/10
• 2/5

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Clare picks a marble at random, puts it back, and then picks another marble at random.

• Dependent
• Independent

Tags

CCSS.7.SP.C.5

Pablo chooses a colored marble from a mixed bag and writes down the color. Pablo leaves it out and then draws another.

• Independent
• Dependent

Tags

CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.3

Christopher picks a marble at random. Without putting the first marble back, he picks a second marble at random.

• Independent 
• Dependent

Tags

CCSS.7.SP.C.8

Allie downloads a song from an online service. A few minutes later, a customer in another city searches for a song on the same site.

• Dependent
• Independent

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Reid picks a card at random. Without putting the first card back, he picks a second card at random.

• Dependent
• Independent

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

What is the probability of rolling a dice and landing on a 4, and then rolling the dice again and landing on any even number?

• 1 ⁄ 6
• 1 ⁄ 8
• 1 ⁄ 2
• 1 ⁄ 12

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Which event is not a dependent event?

• Picking 2 students to each be line leader and door holder from a group of 20 students
• Picking 2 marbles from a bag without replacing the first marble
• Picking 2 crayons from a box at the same time (simultaneously) 
• Picking an earring, replacing it, then picking a 2nd earring

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

Find the probability of: P(A and not 2)

• 1/12
• 1/6
• 1/2

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Suppose two tiles are drawn from the collection shown. The first tile is replaced before the second tile is drawn. Find P(A and A)

• 4/225
• 1/100
• 1/5

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8