Answer:
Step-by-step explanation:
radius r = 5 cm
Height h = 5 cm
Volume of cylinder = πr²h
= π * 5 * 5 * 5
= 125π cm³
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The mean of x is 1.8 and standard deviation of X is 0.98 using calculations for mean and standard deviation by given values or data.
What is mean and standard deviation?
The standard deviation is a summary measure of the differences of each observation from the mean.
In the given que:
X 1 2 3 4
P(X) .5 .3 .1 .1
For mean :
Mean = 1(.5) + 2(.3) + 3(.1) + 4(.1)
= 1.8
For standard deviation :
Standard deviation = √.5(1-1.8)² + .3(2-1.8)² + .1(3-1.8)² + .1(4-1.8)²
= .98
Learn more about mean and deviation using link:
brainly.com/question/26941429
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Answer:
13.8
Step-by-step explanation:
