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
Black_prince [1.1K]
3 years ago
8

In a bag, there are: 6 red marbles, 3 blue marbles, 4 yellow marbles, and 1 green marble. Without putting marbles back in the ba

g:
a) What’s the probability of picking 3 red marbles?
b) What’s the probability of picking 2 green marbles?
c) What’s the probability of getting a blue marble first, and then a yellow marble?
d) What’s the probability of picking 1 red marble and 1 blue marble in any order?
Mathematics
1 answer:
sergejj [24]3 years ago
6 0

Answer:

Step-by-step explanation:

a) so initially there will be a total of 14 marbles in the bag since none have been removed yet. This means the probability of picking one red marble will be 6/14 or simplified, 3/7. However, the next time you pick a marble there will only be 13 marbles in the bag and only 5 red marbles, giving you a probability of 5/13. To get the next red marble, there will only be 12 marbles left in the bag with only 4 red marbles remaining. The probability of this is 4/12 or simplified, 1/3. In order to find the probability of picking 3 total red marbles, you need to multiply those probabilities together, so: (3/7)(5/13)(1/3) for an answer of 5/91 or a 0.0549% chance

b) I am not sure I fully understand how this question is possible if there is only one green marble and the marbles are not being replaced. My best guess would be a 0% chance since you cannot get 2 green marbles without replacement.

c) Again there are 14 marbles in the bag, that means the probability of picking a blue marble is 3/14, then, to find the probability of getting a yellow marble, you get 4/13, remember there is one less marble in the bag because you already took out a blue marble. Then simply multiply those probabilities together: (3/14)(4/13) for 6/91 probability or 0.0659% chance.

d) I am not entirely sure. If you want the probability of the red first then blue it is 9/91, and if it is blue then red, it is also 9/91.

You might be interested in
What is the areas of triangle
SashulF [63]

135 is the answer hope this helps

6 0
3 years ago
I really need help with my questions I asked. No sites or links please.
evablogger [386]

Answer:

Try asking again

Step-by-step explanation:

5 0
2 years ago
FIRST CORRECT ANSWER WILL GET BRAINLIEST
ivanzaharov [21]

Answer:

2

The y intercept is the point at which a line crosses the y axis. In the graph the y axis is crossed at 0, 2 or just 2

Step-by-step explanation:

5 0
3 years ago
romeo makes $12.00 an hour for his first hour of work, $17.00 his second hour, $22.00 his third hour and so on. How much money i
vaieri [72.5K]

Step-by-step explanation:

This can be modeled by the equation f(x)=7+5x

Because if f(1)=7+5=12, f(2)=7+10=17, and f(x)=7+15=22

If x=50 then f(50)=7+5(50)

f(50)=$257

5 0
3 years ago
On a certain hot​ summer's day, 696 people used the public swimming pool. The daily prices are $1.75 for children and $2.00 for
mart [117]

Answer:

i dont know

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • The table shows the hourly cookie sales by students in grades 7 and 8 at the school's annual bake sale. Grade 7 Grade 8 20 21 15
    7·1 answer
  • Use the distributive property to write an expression equivalent to 6(24).
    12·2 answers
  • Which is the better buy?. Store A $180 at 1/3 off Or Store B $110 at 10% off
    7·2 answers
  • Help asap, please!!..
    7·1 answer
  • Pls help me on this
    9·1 answer
  • Which equations are equal to this equation? Select all that apply. 1/4(8x + 56) = 20 A. 56 + 8x = 80 B. 14 = 20 – 8x C. 2x + 14
    13·1 answer
  • Write an algebraic expression for the following: A number that is 5 more than half of x
    14·1 answer
  • Jaxson bought a pair of sunglasses online for $71. He used a coupon code to get a 20% discount. The website also applied a 5% pr
    5·1 answer
  • Two sides of a parallelogram are 5.8m and 8.2m long. Find the perimeter​
    9·1 answer
  • 8.602 rounded to the nearest hundrest
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!