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
ira [324]
2 years ago
10

What is the relationship between the variance and standard deviation? variance is the positive square root of the standard devia

tion?
Mathematics
1 answer:
lana [24]2 years ago
6 0

Variance of a continuous random variable X is defined as

\int\limits_D {(x-\mu)^2f(x)} \, dx

Standard deviation is defined as

\sigma =  \sqrt{Var(X)}

Hence standard deviation is the positive square root of variance.

You might be interested in
Find the perimeter and area , Please help me on this will give brainlist
Ronch [10]

Answer:

Area: x^2+x-6

Perimeter: 4x+2

Step-by-step explanation:

Area: multiply x+3 and x-2 and combine the like terms

Perimeter: multiply the length and width by two, then combine the like terms.

7 0
3 years ago
WILL CHOOSE BRAINLIEST!!!
Fed [463]

Answer:

I think it's the second one.

Step-by-step explanation:

Hope dis helps :D

6 0
2 years ago
Read 2 more answers
Find the value of k<br> 4x+y=8<br> y=kx+2<br><br> options<br><br> -4<br> 4<br> -1/4<br> 1/4
nexus9112 [7]

Answer:

4 i think im not sure

Step-by-step explanation:

Subtract yy from both sides of the equation.

4x=8−y4x=8-y

y=kx+2y=kx+2

Divide each term by 44 and simplify.

Tap for more steps...

x=2−y4x=2-y4

y=kx+2

6 0
2 years ago
Why are online payments services necessary
Semenov [28]

In this digital age, online payment services are added services that will make bill payments easier. Online stores and businesses have cropped up and their market is worldwide. To facilitate easy exchange of goods and services, online payment services are offered. Online payment services benefit both the seller and the buyer. They buyer no longer need to go to a physical office to deposit his payment, all he has to do is lodge his debit or credit card to pay his bills or online purchases. Sellers also benefit from these services because he'll know that his buyers are not bogus and online payments are real-time transactions. Thus, making payment tracking easier for documentation purposes.


Can you mark me brainlest?


5 0
3 years ago
Read 2 more answers
Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the curves about the given
Fed [463]
See attachment for one such shell. The volume is given by the sum of infinitely many thin shells like this, each with radius x and height determined by the vertical distance between the upper blue curve and the lower orange curve for any given x, i.e. 8e^x-8e^{-x}.

The volume is then

2\pi\displaystyle\int_0^1x\left(8e^x-8e^{-x}\right)\,\mathrm dx=16\pi\int xe^x(e^{2x}-1)\,\mathrm dx=\dfrac{32\pi}9(e^3-4)\approx179.677
7 0
3 years ago
Other questions:
  • If your calculator is 5 centimeters wide what is its width in millimeters
    9·1 answer
  • There will be a circular patio with a diameter of 7 metres. Greg is going to put a tiled edge around the patio. What is the circ
    10·2 answers
  • Is -5 a solution to the equation 6x + 5 + 8 + 2x ?
    11·1 answer
  • Help please, I don’t understand
    6·1 answer
  • The price of a notebook was
    8·1 answer
  • Tyler says he invented a number puzzle.
    7·1 answer
  • *<br> What is the value of x?<br> (x + 35)<br> (3x + 1)<br> x =<br> plzzz help due in 40 mins!
    13·1 answer
  • Help i don’t know how to do this
    7·1 answer
  • HELP ME PLZ ASAP it is about cylinders and stuff I kinda understand but also I don't just learn today so...yeah, so showing work
    12·2 answers
  • BJ = 2x+ 1<br> BF = y + 1<br> AG = 2y – 3 = ? feet<br> BG = 6x -2.5 =? feet
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!