Answer:
Step-by-step explanation:
Given
The question is illustrated with the attached image
Required
Find 
To do this, we use sine formula
i.e.
So, we have:
Take arc sin
Standard deviation = √(n * p * q)
You are given n and p
q = 1 - p
q = 1 -0.2 = 0.8
Standard deviation = √(21 * 0.2 * 0.8)
=√3.36 = 1.83
The answer is A.
Answer:
A distinctions does Russia enjoy is explained below in details.
Step-by-step explanation:
- About 11 percent of Russia is tundra, marshy plain, a treeless The tundra is Russia's northernmost zone.
- Russia is the world's largest nation by landmass, It comprises nine separate time zones and shares land boundaries with 14 neighboring nations.
- Russia a federative, democratic, law-based country with a republican model of government. State authority is distributed among the legislative, executive, and judicial divisions.
