Answer:
The mean is 561.40 ppm. The standard deviation is 29.15 ppm.
Step-by-step explanation:
We can calculate the mean and the standard deviation using the proportions of the population that are subjected to the different levels.
The mean can be calculated as
The standard deviation of the mean can be calculated in a similar way
The mean is 561.40 ppm. The standard deviation is 29.15 ppm.
The picture is how I solved it and it will be correct
First put both in other
24,26,27,30,31,32,32 = 30
29,29,29.5,30,32 =29.5
add them together
=59.5
or if your question is all the numbers together
24,26,27,29.5,29,29,30,30,31,32,32,32= 29+30
= 29.9
Answer:
x =
Step-by-step explanation:
According to Pythagorean Theorem, the square value of hypotenuse is equal to sum of square value of two legs:
x^2 + 4^2 = 10^2
x^2 + 16 = 100 subtract 16 from both side
x^2 = 84 find the root of both sides
x =
Greetings!
Let l represent the
length of the rectangle.
Let w represent the
width of the rectangle.
Isolate for the l in Equation #2.
Substitute
Equation #2 into Equation #1.
Combine Like Terms.
Distribute the Parenthesis.
How? <span>Multiply the terms inside the Parenthesis by the term outside of the Parenthesis.
</span>
Add 2 to both sides.
Divide both sides by
8.
The Answer Is:
The Width is
6 units and the Length is
17 units.
Hope this helps.
-Benjamin