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 is your stance on the three basic issues of human development?
Natali5045456 [20]
The basic issues are: 
is development continuous or discontinous stages
does everyone grow up the same or is it based on context
is development determiend by nature vs nurture or plasticity?

Personally, i believe that all of these issues are important to be adressed when we're talking about a certain development, with only one additional issue
That issue would be: Is the development good or bad ?'
Addressing this issue will make us know whther to make an effor to stop the development or just let it be.
4 0
3 years ago
Give an example of how buddhism encourages happiness in its followers?
s344n2d4d5 [400]

Buddha taught that attachment and craving are the roots of all suffering, so for those addicted to drugs or alcohol, Buddha would say that their addiction is a severe attachment, and thus harmful, the teachings of Buddha state that all individuals want to avoid pain and seek pleasure. Hope this helped!

8 0
3 years ago
At her college campus job, Alexis likes to think of herself as independent and strong. At the same time, later in the dorms, she
Harlamova29_29 [7]

Answer:  Feeling In-between stages.

Explanation:

According to the theory of Arnett , in-between stages is defined as the age of person in which he/she they are not considered adults but at the same time they cannot be described as adolescent.The stage of being between the age of these two stages lets the person have feelings and behavior of both the ages.    

According to the question, Alexis is displaying the feeling in-between stage as she is able to have the feeling of adolescent by acting half her age and  behave as mature and independent person at work like an adult.

8 0
3 years ago
WILL GIVE BRAINLIEST!!!!
Ber [7]

Hi! Not going to write your assignment for you but happy to give you some thoughts for it.

1. Urbanization: One of the key consequences of the Industrial Revolution was a move towards urban centers as putting factories in urban areas helped keep costs down

2. Loss of worker identity: With the rise of technology, workers because less needed and more like cogs in a machine

3. Women in the workplace: Many mills started to hire women, too, as they had skill with fabric based work. See: Lowell Mills.

6 0
3 years ago
Jasmine is willing to buy 40 pencils at 25 cents apiece. When the price is 10 cents apiece, she is willing to buy 100 pencils. W
masya89 [10]
Jasmine is willing to spend 10.00$ on pencils 10x100=1000|40x25=1000

  40
x25
  200
  800=1000
6 0
2 years ago
Other questions:
  • While suddenly and unexpectedly falling asleep during normal waking hours, Sarah experiences vivid hallucinations of being in a
    13·2 answers
  • The terms telework or telecommuting are phrases that mean:
    10·2 answers
  • What were the three major reasons that college students indicated why they use illicit drugs?
    6·1 answer
  • A recent general social survey asked subjects, "within the past 12 months, how many people have you known personally that were v
    7·1 answer
  • In your journal, create a chart outlining the advantages and disadvantages of the North and South moving into the Civil War. Use
    14·2 answers
  • How I can contribute my unrecognized country education research?​
    13·1 answer
  • HELPPPP ITS A TEST PLS HELP ILL GIVE BRAINLIST
    11·2 answers
  • What is white supremacy?
    11·2 answers
  • If consumers expect the price of a good to rise in the near future, how would
    5·1 answer
  • Most deaths in tropical cyclones (hurricanes, typhoons, etc.) are the result of ________
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!