Answer: 50 I’m pretty sure or it’s 31
Step-by-step explanation:
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:
4
Step-by-step explanation:
Find the length of side FD given that
Since both triangles are similar, then
AB= FD
2x+2 = x+3
Collect like terms
2x-x =3-2
x = 1
Get FD
FD = x+3
FD = 1+3
FD = 4
Hence the measure of FD is 4
Answer:
P(A︱B) =0.50
Step-by-step explanation:
That's the answer
Answer:
the answer 6.3%
Step-by-step explanation:
