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
amm1812
3 years ago
5

Three counters are used for a board game.If the counters are tossed,how many ways can at least one counter with Side A occur?

Mathematics
1 answer:
sukhopar [10]3 years ago
3 0
We use the equation for repeated trials written below:

Probability = n!/r!(n-r)! * p^(n-r) * q^r

The p is the probability of getting a side A in one toss. Since a counter has only two side, p = 0.5. The q is the probability of not getting side A in one toss, which is also q = 0.5. Now, r is the number of success per n trials. There are 3 tosses so, n=3. The question is getting "at least 1" counter. So, r=1, r=2 and r=3.

Probability for r=1: 3!/1!(3-1)! * (0.5)^(3-1) * (0.5)^1= 0.375
Probability for r=2: 3!/2!(3-2)! * (0.5)^(3-2) * (0.5)^2= 0.375
Probability for r=1: 3!/3!(3-3)! * (0.5)^(3-3) * (0.5)^3= 0.125

Total probability = 0.375 + 0.375 + 0.125 = 0.875
You might be interested in
When solving the equation 5/18=5/4x+6 algebraically, it is possible to set the denominators of the fractions equal to each other
eduard

Yes, but only if the numerators of both fractions are equal to each other.

Given that two fractions are equal to each other, we can set the denominators to be equal to each other, in the instance of this question, but that is only possible, if and only if the numerators of the fractions are equal to one another.

Another proof is,

\frac{3}{9} = \frac{3}{4 + x}

like in the attached example, we can say that 9 = 4+x, and go further ahead to solve it.

9 = 4 + x

x = 9 - 4

x = 5

if x = 5, then we can assume that

\frac{3}{9} = \frac{3}{4 + 5}

\frac{3}{9} = \frac{3}{9}

This proves that only the numerator has to be the same for the denominator to be able to be equal to one another.

more explanation can be found here brainly.com/question/7067665

6 0
3 years ago
Read 2 more answers
Kanji buys 3 yards of fabric for $7.47. Then he realizes that he needs 2 more yards Of the Same fabric. How much will the extra
emmainna [20.7K]
It will cost 4.98.
Explanation: If you divide 7.47 by 3, you get 2.49. One yard plus one yard equals two yards. Multiply 2.49 by 2 to get the answer.
6 0
4 years ago
Look at the scatter plot. Which of these equations is the best representation of the trend line?
dusya [7]
B.
y =  \frac{1}{4} x - 2


because of how the slope (Y over X) is 1/4 and the intercept is (0, 2).

The slope is positive because the line moves to the right.

(for me I remember that /it hurts \doesn't. The line is you moving your arm.)
3 0
4 years ago
Read 2 more answers
Please help mereeeeeeeeeeeeee
pochemuha

Answer:

I think its A.

Step-by-step explanation:

Parallel lines are lines that will never intersect

5 0
3 years ago
Read 2 more answers
Helppppppp mathhhhhhhh
mestny [16]
This is calculator work. Type in 0.8 inverse tangent and find 38.6598, which, rounded, matches answer D.
6 0
3 years ago
Other questions:
  • 445% as a decimal rounded to the thousands place ​
    12·1 answer
  • Using the slope and the y-intercept, graph the line represented by the following equation. Then select the correct graph. 2x - y
    15·2 answers
  • John found that an anti virus program on his personal computer scans 182 megabytes of data in 7 seconds. An update to the progra
    14·1 answer
  • a swimming pool in the shape of a right triangular prism measures 24 feet by 16 ft and is 4.5 ft deep across the entire pool wha
    11·1 answer
  • Name two coordinates that are on the line: <img src="https://tex.z-dn.net/?f=y%20%3D%2012" id="TexFormula1" title="y = 12" alt="
    7·1 answer
  • Rewrite the following in the form log(c). Log(6)-log(2)
    10·1 answer
  • What's the product of 72 and 56
    14·2 answers
  • Help me rq!!..................
    8·1 answer
  • Solve for x, y, and z
    7·2 answers
  • In ΔOPQ, o = 500 cm, p = 600 cm and q=380 cm. Find the measure of ∠P to the nearest 10th of a degree.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!