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
Sav [38]
3 years ago
14

The probabilities that a batch of 4 computers will contain 0, 1, 2, 3, and 4 defective computers are 0.4521, 0.3970, 0.1307, 0.0

191, and 0.0010, respectively. Find the standard deviation for the probability distribution
Mathematics
1 answer:
kicyunya [14]3 years ago
3 0

Answer:

The standard deviation of given probability distribution is 0.767.

Step-by-step explanation:

We are given the following information in the question:

  X:      0                  1                  2                3                  4

P(x):      0.4521         0.3970       0.1307        0.0191          0.0010

Formula:

\text{Mean} = \sum X.P(x)\\= 0(0.4521) + 1(0.3970) + 2(0.1307) + 3(0.0191) + 4(0.0010)\\= 0.7197

\mu = 0.7197

Formula:

\text{Variance} = \sum (X-\mu)^2E(x)\\= (0-0.7197)^2(0.4521)+(1-0.7197)^2(0.3970)+(2-0.7197)^2(0.1307)+(3-0.7197)^2(0.0191)+(4-0.7197)^2(0.0010) \\=0.587

\text{Standard Deviation} = \sqrt{\text{Variance}}\\= \sqrt{0.587} = 0.767

The standard deviation of given probability distribution is 0.767.      

You might be interested in
I need to know the answer please help! and thank you!
Snowcat [4.5K]

Answer:

v/2

Step-by-step explanation:

First, if we expand the expression we know that it is equal to (4/8)*(v^3/v^2)

We can simplify the numbers to get (1/2)*(v^3/v^2)

We know that division of exponents is just subtraction of them, so v³/v² = v^(3-2) = v^1 = v

So, the answer is 1/2 * v or v/2

I hope this helps!

7 0
3 years ago
Does this set of ordered pairs
Talja [164]

Answer:

No because there are multiple Y values for the same X value. 3 is -1 and 1 at the same time meaning it is not a function.

Step-by-step explanation:

5 0
4 years ago
Help!!!! Please anyone
Ivenika [448]
You can use Desoms for graphs
6 0
3 years ago
If a sprinkler waters 1 over 15 of a lawn in 1 over 3 hour, how much time will it take to water the entire lawn?
Feliz [49]
Now, a whole, will be 15/15 or 1 whole.

now, the sprinkler does 1/15 of the lawn in 1/3 of an hour, how long will it be to do the whole 15/15?

\bf \begin{array}{ccll}
lawn&hours\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
\frac{1}{15}&\frac{1}{3}\\\\
\frac{15}{15}&h
\end{array}\implies \cfrac{\quad \frac{1}{15}\quad }{\frac{15}{15}}=\cfrac{\quad \frac{1}{3}\quad }{h}\implies \cfrac{1}{15}\cdot \cfrac{15}{15}=\cfrac{\quad \frac{1}{3}\quad }{\frac{h}{1}}
\\\\\\
\cfrac{1}{15}=\cfrac{1}{3}\cdot \cfrac{1}{h}\implies \cfrac{1}{15}=\cfrac{1}{3h}\implies 3h=15\implies h=\cfrac{15}{3}\implies h=5
6 0
3 years ago
Read 2 more answers
PLEASE HELP!!
kifflom [539]

Answer:

Nothing, they are equal.

Step-by-step explanation:

we know that

The measure of an arc length is equal to the measure of its central angle

therefore

In this problem

If the central angle is 28°

then

The measure of its arc is  28° too

6 0
3 years ago
Read 2 more answers
Other questions:
  • an ellipse has a center at the origin, a vertex along the major axis at (13, 0), and a focus at (12, 0). What is the equation of
    15·2 answers
  • The area of a square garden is 50 m². How long is the diagonal?
    11·2 answers
  • Which is the first error that Tomas made? Tomas substituted the 3 for x when he should have substituted 6 for x. Tomas added 6 t
    14·1 answer
  • Express 12113 in base 10​
    5·1 answer
  • Paul and Richard are dividing 36.25 divided by 5 Paul says that the first digit of the quotient is in the ones Place Richardson
    7·2 answers
  • 5. Which function would have the point (0,0) on its graph?
    7·1 answer
  • Nico completes 1/8 of his math problems in 2/5 of an hour.At tis rate how many of his math problems will he he finish in 1 hour
    15·1 answer
  • Which polynomial is represented by the algebra tiles?
    9·1 answer
  • Yashea has 3 dogs. Last month she bought:
    15·2 answers
  • When do we use 180 or 360 to solve interior or exterior angles
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!