A = 28.26 units^2
Step-by-step explanation:
The formula for the area of a circle is:

We can just plug in the numbers and solve.


28.26 units^2
What is it called, a comparison of two numbers when divided
Answer:
Mean = 1.9
Standard deviation = 0.6
Step-by-step explanation:
The Mean is calculate by the formula:

⇒ 
Thus Mean to the nearest tenth is 1.9
Standard Deviation is the square root of sum of square of the distance of observation from the mean.
where,
is mean of the distribution.
Putting all values in the formula, We get
Standard Deviation = 0.597 ≈ 0.6