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
Sergeu [11.5K]
4 years ago
7

A, B, and C are mutually exclusive. P(A) = .2, P(B) = .3, P(C) = .3. Find P(A ∪ B ∪ C). P(A ∪ B ∪ C) =

Mathematics
1 answer:
scoray [572]4 years ago
3 0
Events are said to be mutually exclusive if they can not occur at the same time, that is, the probability of those events occurring at the same time is zero.
In the question given above, 
P (A) = .2
P (B) = .3
P (C) = .3
P (A U B U C) = .2 + .3 + .3 = .8
Therefore, P (A U B U C) = 0.8.<span />
You might be interested in
What is 0.907 as a percent
PIT_PIT [208]
Since 1/100 is 1% or 0.01, then 0.9 is 90/100 or 90%. 0.907 is 907/1000 (we simply have the number and do 10^(numbers in the number after the decimal) for the denominator). or 90.7% (we have a decimal because it wouldn't make sense for it to be more than 1, but we know that it's not less than 90%
7 0
4 years ago
Read 2 more answers
People use data and statistics to help them make important policy decisions, to identify problems in an organization, and to pre
Liula [17]

Answer:

Statistical scores and rankings are useful because they provide quantitative figures that represent the student's level of understanding. These methods of ranking can give the observer an opportunity to quickly analyze results but they leave out other factors that are both quantifiable and non-quantifiable. For example, the data won't explicitly convey the time an individual studies but it is compelling to say that good scores and time studying gave a linear relationship. An example of something that is non-quantifiable is the experiences and past knowledge that can affect how well an individual understands and tests on a specific subject.

7 0
4 years ago
Please find the area of this irregular shape
Genrish500 [490]

Answer: 10 sq units

Step-by-step explanation:

Area of triangle: 1/2 x b x h

1/2 x 2 x 2 = 2

Area of the left triangle is 2 sq units

1/2 x 4 x 2 = 4

Area of the right triangle is 4 sq units

Area of square: l x w

2 x 2 = 4

Area of square is 4 sq units

Area of figure: A of square + A of r tri. + A of left tri.

4 + 4 + 2 = 10

The area of the figure is 10 sq units.

6 0
3 years ago
Y=x2-8x-3 standard to vertex form
Drupady [299]

Answer:

  • y = (x - 4)² - 19

Step-by-step explanation:

<u>Standard form of quadratic function:</u>

  • y = ax² + bx + c

<u>Vertex form:</u>

  • y = (x - h)² + k

<u>Convert the given function by completing a square:</u>

y = x² - 8x - 3 =

     x² - 2*4*x + 4² - 4² - 3 =

    (x - 4)² - 19

3 0
3 years ago
Melissa the trainer has two solo workout plans that she offers her clients: Plan A and Plan B. Each client does either one or th
Vikentia [17]

Let Length of each Plan A workout be a

and Length of each Plan B workout be $b$

on Wednesday,

$5a+3b=7$

$2a+12b=19$

multiply equation one by $4$ and subtract equation two from it

to get,

$18a=9$ or $a=\frac12$

substitute $a$ in eq 2. to get $b$, $12b=18\implies b=\frac32$

6 0
3 years ago
Other questions:
  • What is the slope of the line y=3
    5·2 answers
  • Determine the annual insurance premium for 25/50 liability insurance for a driver having a rating factor of 1.85 if the base pre
    13·1 answer
  • A newborn weighs 8 pounds, 5 ounces. There are 453.59 grams per pound. What is the infant's weight in grams?
    10·1 answer
  • Which symbol gives you more information about two numerical expressions
    9·1 answer
  • Which is the largest interval over which the function shown in the table is decreasing
    13·1 answer
  • Increase 60kg by 12.5%
    6·1 answer
  • If you can help me with these 4 questions I'll give you brainliest :))​
    6·2 answers
  • HELP PLS PLS!!!! look at pic
    9·1 answer
  • Someone help (find the inverse)
    8·1 answer
  • Solve the equation for x. 4^5 square root (2x-4)^2=16
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!