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
Mrrafil [7]
4 years ago
14

YOU HAVE 8 COINS IN A BAG. 3 OF THEM ARE UNFAIR AND THEY HAVE 60% CHANCE OF COMING UP WITH HEAD WHEN FLIPPED. YOU RANDOMLY CHOSE

ONE COIN FROM THE BAG AND FLIP IT TWO TIMES. WHAT IS THE PROBABILITY OF GETTING TWO HEADS?
Mathematics
1 answer:
madreJ [45]4 years ago
4 0

Answer:

0.29125 or 29.125%

Step-by-step explanation:

For the five fair coins, the probability of coming up head when flipped is 0.5, so for two flips: 0.5*0.5 = 0.25, for each of these coins. So, the probability to take on of them is 5/8, and the probability of coming up with head: (5/8)*0.25 = 0.15625.

For the unfair coins, the probability of coming up with heads is 0.6, so for two flips: 0.6*0.6 = 0.36 for each unfair coins. The probability to chose one of them is 3/8, and the probability of coming up with head: (3/8)*0.36 = 0.135.

These probabilities are dependent, so to have the total probability we must sum them:

P = 0.15625 + 0.135

P = 0.29125 or

P = 0.29125 x 100% = 29.125%

You might be interested in
A machine is designed to fill 16-ounce bottles of shampoo. When the machine is working properly, the amount poured into the bott
Andreyy89

Answer:

(15.8495,16.2505)  

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 16.05 ounces

Standard Deviation, σ = 0.2005 ounces

We are given that the distribution of amount poured into the bottles is a bell shaped distribution that is a normal distribution.

Empirical rule:

  • It states that for a normal distribution, almost all data falls within three standard deviations (denoted by σ) of the mean (denoted by µ).
  1. It shows that 68% falls within the first standard deviation (µ ± σ), 95% within the first two standard deviations (µ ± 2σ), and 99.7% within the first three standard deviations (µ ± 3σ).

Confidence interval:

\mu \pm 2\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

16.05 \pm 2(\frac{0.2005}{\sqrt{4}} ) = 16.05 \pm 0.2005 = (15.8495,16.2505)

4 0
3 years ago
(a)Which athlete went on the shortest training ride?
Zolol [24]
Could you maybe add more info? like a story or something
8 0
3 years ago
How do I do this ? I have 120 degrees but I need to solve for x
Darina [25.2K]
Since the legs are the same length, we know that the remaining two angles must be the same.

120+2x=180
2x=60
x=30

Final answer: x=30 degrees
3 0
3 years ago
What three lengths segments that could nos be used to from a triangle
svet-max [94.6K]
3,4,5 can give you a triangle
5 0
3 years ago
Antonio's father has a cutting form that can cut a pizza into 12 slices and another form that can cut into 8 slices.
n200080 [17]
A. 5/8
b. 3/8

sorry. I don't have enough time to do C
If you need more help then let me know

3 0
3 years ago
Other questions:
  • 1/3 * 1/5 in its simplest form
    15·1 answer
  • Need help asssappp!!!
    10·2 answers
  • Tony misplaced 7 77 stamps from his collection. He knows that each stamp of his is worth $ 0 . 1 5 $0.15dollar sign, 0, point, 1
    10·1 answer
  • PLEASE HELP FAST!! FIRST ANSWER IS BRAINLIEST IF CORRECT!
    8·2 answers
  • Which ratio represents the tangent of an angle?
    14·2 answers
  • Solve for x. Show your work.
    9·1 answer
  • Please show your work​
    7·1 answer
  • Mrs. McAlister wrote the equation 10 t minus 4 t + 3 t = 8 on the board and asked students to write an equivalent equation. The
    9·1 answer
  • Multiply: (3√6 - √2)(4√2 - √6)​
    15·1 answer
  • Brandon is planning to make fudge. Each pound of fudge costs $4.25 to make. Use the ratio table to show your strategy for findin
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!