Answer:
b. 224
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so 
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
In this problem:
We want to find n, when 
So
The nearest integer number to 223.9 is 224.
So the correct answer is:
b. 224
Answer:
The first one is reflection because reflection means multiplying the function by a negative constant k the K in this question is representing the -1
The second one is dilation which means to multiply a function by a value of K , that's greater than 1 vertically stretches the function away from the x- axis .
1. Reflection
2 .Dilation
Step-by-step explanation: I just took the test .
Please see picture above.
