Answer:
The answer is : 0.0597
Step-by-step explanation:
Population mean = μ = 80
Standard deviation = σ = 20
Sample = N = 60
σ_mean = σ/√N
= (20)/√(60) = 2.582
Now we will find z1 and z2.
z1 = {(84) - μ}/σ_mean =
z2 = {(88) - μ}/σ_mean =
Now probability that the sample mean will be between 84 and 88 is given by:
Prob{ (1.549) ≤ Z≤ (3.098) } = (0.9990) -(0.9393) = 0.0597
Answer:
Step-by-step explanation:
Given :
To Find:
The volume of the drum.
Solution:
We all know that drum is cylindrical.So we'll use the formulae of the volume of cylinder,to find its volume.
Where,
The value of radius ain't given,but the diameter is given.We can use the formulae of radius.
Substitute the value of diameter:
Hence,the radius is 10.
So we could now use the formulae of the volume of cylinder:
<em>[Firstly bring the answer in terms of π then plug π = 3.14 and then simplify.]</em>
<u>Hence, we can conclude that:</u>
The volume of this drum is 5024 in^3.
