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
Korolek [52]
3 years ago
12

How do I do probability?

Mathematics
2 answers:
Katen [24]3 years ago
3 0
Probability is the measurement of the likelihood of something happening

So, looking through the different questions, whether they have a graph or picture, you look at the numbers and divide by the total to determine the probablility.

Hope this helps
rjkz [21]3 years ago
3 0
This is a very broad question, probability is the possibility of something happening.  For example, if you were to roll a dice, each side would have a 1/6 probability of being landed on, since statistically, each one has an equal chance. Probability is written as a fraction.
You might be interested in
There are three power plants [X, Y, Z] that at any given time each one either generates electricity or idles. Event A is that pl
insens350 [35]

We're told that

P(A\cap B)=0.15

P(A\cup B)^C=0.06\implies P(A\cup B)=0.94

P(B\mid A)=P(B^C\mid A)=0.5

where the last fact is due to the law of total probability:

P(A)=P(A\cap B)+P(A\cap B^C)

\implies P(A)=P(B\mid A)P(A)+P(B^C\mid A)P(A)

\implies 1=P(B\mid A)+P(B^C\mid A)

so that B\mid A and B^C\mid A are complementary.

By definition of conditional probability, we have

P(B\mid A)=P(B^C\mid A)

\implies\dfrac{P(A\cap B)}{P(A)}=\dfrac{P(A\cap B^C)}{P(A)}

\implies P(A\cap B)=P(A\cap B^C)

We make use of the addition rule and complementary probabilities to rewrite this as

P(A\cap B)=P(A\cap B^C)

\implies P(A)+P(B)-P(A\cup B)=P(A)+P(B^C)-P(A\cup B^C)

\implies P(B)-[1-P(A\cup B)^C]=[1-P(B)]-P(A\cup B^C)

\implies2P(B)=2-[P(A\cup B)^C+P(A\cup B^C)]

\implies2P(B)=[1-P(A\cup B)^C]+[1-P(A\cup B^C)]

\implies2P(B)=P(A\cup B)+P(A\cup B^C)^C

\implies2P(B)=P(A\cup B)+P(A^C\cap B)\quad(*)

By the law of total probability,

P(B)=P(A\cap B)+P(A^C\cap B)

\implies P(A^C\cap B)=P(B)-P(A\cap B)

and substituting this into (*) gives

2P(B)=P(A\cup B)+[P(B)-P(A\cap B)]

\implies P(B)=P(A\cup B)-P(A\cap B)

\implies P(B)=0.94-0.15=\boxed{0.79}

8 0
3 years ago
Math I need help I'm trying to pass 6th<br><img src="https://tex.z-dn.net/?f=-6%20%2B%20%28-1%29%20%2B%20%28-4%29%20%3D" id="Tex
vlabodo [156]

Answer:

-11

Step-by-step explanation:

-6+(-1)+(-4)=-11

I hope this helps, I also think this is the answer!.

7 0
3 years ago
Which solution is correct? Be sure to check for extraneous solutions.
denis23 [38]
That answer is d)x=-4
4 0
3 years ago
1) A set of numbers in parentheses separated by a comma like (3,-4) is called an
Kruka [31]
The answer is b. Ordered pairs
5 0
3 years ago
What is the line of reflection for the trapezoids?
shepuryov [24]
The answer is A

because there is no other answer

6 0
2 years ago
Other questions:
  • Roland's Boat Tours sells deluxe and economy seats for each tour it conducts. In order to complete a tour, at least 14 economy s
    5·1 answer
  • 14 students in neils class play basketball. 35 percent of the students in his class play basketball. How many total students are
    14·2 answers
  • Help please I don’t understand:(
    12·1 answer
  • Are these two questions correct?
    8·2 answers
  • Can somebody help me with this math problem?
    12·2 answers
  • Brian had 42 class fair tickets to sell. He sold 5/6 of the tickets. How many tickets did Brain sell?
    9·2 answers
  • Y=3x+8 Y=-2x-2<br>can anyone help me with this ??
    9·2 answers
  • Morgan rewrote the expression 90 + (10 + 4.8) as (90 + 10) + 4.8. How will this change the work that is needed to evaluate the e
    10·2 answers
  • In how many months was the high temperature less than 17°C?
    15·1 answer
  • Oliver purchased 11.3 gallons of gasoline. There are approximately 3.8 liters
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!