Answer: travis can afford the compact car but not the coupe
Step-by-step explanation:
Answer:
the answer is d
Step-by-step explanation:
Answer:
Dr. Nemur appears to be uncomfortable around me. Sometimes when I try to talk to him, he just looks at me strangely and turns away. I was angry at first when Dr. Strauss told me I was giving Dr. Nemur an inferiority complex. I thought he was mocking me and I’m oversensitive at being made fun of.
What does this excerpt tell the reader about Charlie?
He is relieved that the doctors understand him.
He takes pleasure in mocking others.
He is concerned about how he appears to others.
He is worried about losing his intelligence.Step-by-step explanation:
Answer: C. Equal to
Step-by-step explanation:
The standard deviation is written as:
Sx = √( ∑(xₙ - x)^2/(n-1))
Where xₙ are the values of the data set, n is the number of data points and x is the mean of the data set.
Now, if we add a constant c to all the terms in our data set we will have:
(i will use the ' to denote the transformed data)
xₙ' are now xₙ + c.
And the new mean will be:
x' = ( (x₁ + c) + (x₂ + c) + .... + (xₙ + c))/n = (c*n + (x₁ + x₂ + ..))/n = c + (x₁ + x₂ +...)/n
x' = c + x
Then the new standard deviation will be:
Sx' =√( ∑(xₙ' - x')^2/(n-1))
Sx' = √( ∑((xₙ+c) - (x +c))^2/(n-1)) = √( ∑(xₙ - x)^2/(n-1)) = Sx
So the standard deviation does not change.
The correct option is C.
