1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dmitrij [34]
2 years ago
12

A bag contains 10 red marbles and 5 blue marbles. You randomly select 3 marbles from the bag. What is the probability that all 3

marbles are blue when (a) you replace each marble before selecting the next one and (b) you do not replace each marble before selecting the next one?
(a) 1/3 (b) 1/3
(a) 1/27 (b) 1/3
(a) 1/27 (b) 2191
(a) 1/3 (b) 2/91​
Social Studies
1 answer:
Ad libitum [116K]2 years ago
6 0

Answer:

A.) With replacement = 1/27

B.) Without replacement = 2/91

Explanation:

Given the following :

Red marbles = 10

Blue marbles = 5

Probability that all 3 marbles are blue;

A.) With replacement :

Total no marbles = 10 + 5 = 15

P(First pick equals blue) = 5/15 = 1/3

P( second pick equals blue) = 5/15 = 1/3

P( third pick equals blue) = 5/15 = 1/3

P(blue blue blue) = (1/3) × (1/3) × (1/3) = 1/9

B.) Without replacement :

P(First pick equals blue) = 5/15 = 1/3

P( second pick equals blue) = 4/14

P( third pick equals blue) = 3/13

P(blue blue blue) = (1/3) × (4/14) × (3/13 )

= 12/546 = 2/91

You might be interested in
What Islamic invention or development do you think has had the greatest effect on our world today?
laila [671]
I would say camera it was invented by Ibn ul Haitham. 
7 0
3 years ago
Read 2 more answers
To him, your celebration is a sham; your boasted liberty, an unholy license; your national greatness, swelling vanity; your soun
777dan777 [17]

Answer:

It implies that it's the things that belong to the person

7 0
3 years ago
Read 2 more answers
A potlach can best be describe as a
zavuch27 [327]

A Potlach is a ceremonial feast, common with the Northwest Native American tribes, wherein possessions were given away or destroyed by the wealthy tribespeople in a show of their opulence and wealth.

4 0
3 years ago
How does the writer use design best practices to make the document easy to read?
Len [333]
B by using font colors that coordinate with each other
6 0
3 years ago
How was the work of missionaries vital in the spread of Christianity through the Roman empire?
mrs_skeptik [129]
Missionaries spread the word of Jesus.
7 0
3 years ago
Other questions:
  • Can you hold more than one driver's license
    8·1 answer
  • According to Positivism, the pursuit of our common good must include at least these three things:
    8·2 answers
  • The Community Reinvestment Act of 1977 succeeded in
    13·2 answers
  • Why would someone want to file a lawsuit in a felony?
    6·1 answer
  • __________ describes a Jewish nationalist movement to create a Jewish homeland.
    5·2 answers
  • In the context of the Rocket Model, a critical first step to building a high-performing team is to:______
    8·1 answer
  • Please help!! Thank u so much!!
    13·1 answer
  • Because she plans on achieving success in marketing, Tammie is taking courses on managing social media. This is an example of __
    9·1 answer
  • Please define federal laws? *
    8·2 answers
  • Actull diameter of the earth<br>​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!