Answer:
2.0
Step-by-step explanation:
Couldn't really understnd what you wrote but I'll assume it's the standard deviation of a fair, 7-sided die
The standard deviation is just the square root of the variance (which is just the second moment minus the first moment squared)
The first moment (AKA the average is..)
The second moment is..
Answer:
its either 6 or negative 9 there is no x in the equation
however its most likely -9
Step-by-step explanation:
Answer: A)Area=1/2bh, 1/2x12x9=1/2x108,108/2=54cm2.
B)If the base doubles the original Area doubles.
C)If both the Height and the base is doubled then the Area will Quadruple.
Step-by-step explanation:
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.
That would be 7 million ( answer).