Answer: a) 27.5, b) 5.33.
Step-by-step explanation:
Since we have given that
and n = 180
We need to calculate the sample mean and sample standard deviation.
So, the mean of the distribution of sample means is
The standard deviation of the distribution of sample means is
Hence, a) 27.5, b) 5.33.
Answer:We're looking for a,b such that
\dfrac{9x-20}{(x+6)^2}=\dfrac a{x+6}+\dfrac b{(x+6)^2}
Step-by-step explanation:
Hope this helps good luck
Answer:
x=4
Step-by-step explanation:
f(x) =1/4 x - 2 when f(x) = -1.
-1=1/4x-2
-1+2=1/4 x
1×4=x
x=4
4.58 x 10^-5
hope I helped