Answer:
= 61%
Step-by-step explanation:
Shaded is 1.22 out of 200
Shaded is .61 out of 100
TOTAL IS 61%
HOPE THIS HELPS
PLZZ MARK BRAINLIEST

so,

it equals 12.49 or 12.5 depending on rounding
I hope this helps!
Answer:
The sample size required is at least 171
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.
What sample size is required?
A samle size of at least n is required, in which n is found when 
So






Rouding up
The sample size required is at least 171
Answer:
b
Step-by-step explanation:
the y axis is the axis going up and down, so the reflection would be on the other side of the axis.