Answer:
Point estimate: 0.391
Margin of error: 0.042
Step-by-step explanation:
A confidence interval has two bounds, a lower bound and an upper bound.
A confidence interval is symmetric, which means that the point estimate used is the mid point between these two bounds, that is, the mean of the two bounds.
The margin of error is the absolute difference between these bounds and the point estimate.
In this question:
Lower bound: 0.349
Upper bound: 0.433
Point estimate: (0.349 + 0.433)/2 = 0.391
Margin of error: |0.349 - 0.391| = |0.433 - 0.391| = 0.042
Answer:
Build an exponential model from data
b must be greater than zero and not equal to one.
The initial value of the model is y = a. If b > 1, the function models exponential growth. As x increases, the outputs of the model increase slowly at first, but then increase more and more rapidly, without bound. If 0 < b < 1, the function models exponential decay.
Step-by-step explanation:
Answer
20 would be $30
Step-by-step explanation:
10375 = .17x
/.17 /.17
About $61029 = x
Let
x -----> the number
we know that
The algebraic expression of the problem is giving by
x^2 -----> square a number
then
square root of the result
so
therefore
The final result is the same original number