Answer:
Option A: 3.59% is the correct answer
Step-by-step explanation:
Z-score is used to calculate the probabilities when mean and standard deviation is given.
Given
Mean = μ = 21
SD = σ = 5
We have to find the probability of selling 12 or less water heaters so our x value is 12
x = 12
The z-score of a value is calculated as:
z-score = (x-μ)/σ
Putting the values
Now z-score table will be used to calculate the probability for z= -1.8
So we will go for the row with -1.8 and column 0, which gives us: 0.03593
As we have to calculate the probability in percentage
Hence,
Option A: 3.59% is the correct answer
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A-b is the answers
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It’s 3/10 that’s the answer
Solving a cubic equation, it is found that the dimensions of the container are of <u>1 inch, 9 inches and 5 inches.</u>
The volume of the <u>cubic container</u> is given by the following equation:
Since it holds 45 cubic inches of merchandise, we have that , then:
Using a cubic equation calculator, the real solution is , thus, the dimensions are:
The dimensions of the container are of <u>1 inch, 9 inches and 5 inches.</u>
A similar problem is given at brainly.com/question/16606259