Answer:
que es eso
Step-by-step explanation:
fuhwiheirj lo siento
Area of a triangle = 1/2 x base x height
Area = 3.75 sq m
Base = 2.5 m
3.75 = 1/2 x 2.5 x height
3.75 x 2 = 2.5 x height
7.5/ 2.5 = height
height = 3 m
Answer:
--- Mean
--- Variance
--- Standard Deviation
Step-by-step explanation:
<em>See Comment for missing details</em>
Given
--- proportion
-- sample
Solving (a): The mean; E(x)
This is calculated as:
![E(x) = n * p](https://tex.z-dn.net/?f=E%28x%29%20%3D%20n%20%2A%20p)
Substitute values for n and p
![E(x) = 6 * 0.76](https://tex.z-dn.net/?f=E%28x%29%20%3D%206%20%2A%200.76)
![E(x) = 4.56](https://tex.z-dn.net/?f=E%28x%29%20%3D%204.56)
Solving (b): The variance; s^2
This is calculated as:
![s^2 = n*p*(1-p)](https://tex.z-dn.net/?f=s%5E2%20%3D%20n%2Ap%2A%281-p%29)
Substitute values for n and p
![s^2 = 6 * 0.76 * (1-0.76)](https://tex.z-dn.net/?f=s%5E2%20%3D%206%20%2A%200.76%20%2A%20%281-0.76%29)
![s^2 = 6 * 0.76 * 0.24](https://tex.z-dn.net/?f=s%5E2%20%3D%206%20%2A%200.76%20%2A%200.24)
![s^2 = 1.0944](https://tex.z-dn.net/?f=s%5E2%20%3D%201.0944)
Solving (c): The standard deviation; s
This is calculated as:
![s = \sqrt{s^2](https://tex.z-dn.net/?f=s%20%3D%20%5Csqrt%7Bs%5E2)
Substitute value for s^2
![s = \sqrt{1.0944](https://tex.z-dn.net/?f=s%20%3D%20%5Csqrt%7B1.0944)
![s = 1.0461](https://tex.z-dn.net/?f=s%20%3D%201.0461)
Answer:
Step-by-step explanation:
it is already equality
then y to solve