Answer:
3.00
Step-by-step explanation:
Given that :
Payout(X) : ___ 0 ___ 4 ___ 6 ____ 8 _____ 10
Probability (p(x) 0.5 _ 0.2 __0.15 __0.1 ___ 0.05
Expected value :E(X) = ΣX* p(x)
E(X) = (0*0.5) + (4*0.2) + (6*0.15) + (8*0.1) + (10*0.05)
E(X) = 3
Expected value = 3.00
It is 100 ..........................................................
Centralangle/360 times area of circle=sector area
120/360 times pi8²=
(1/3)(64pi)=64pi/3 square inches
The total surface area of a cylinder with 5cm height and radius 2cm is :
28π cm²
<h3>What is cylinder?</h3>
One of the most fundamental curvilinear geometric shapes, the cylinder has historically been thought of as a three-dimensional solid. Geometrically speaking, it has been referred to as a circle-based prism.
Analysis:
The total surface area of a cylinder is : 2πrh + 2π
where radius = 2cm , Hight = 5cm
Total surface area = 2 x π x 2 x 5 + 2 x π x 2 x 2
= 20π + 8π = 28π cm2
In conclusion, the total surface area of the cylinder is 28π cm2.
To know more about cylinder visit:
brainly.com/question/27795300
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