I wish i could show u how to work it out but just do it or work it out the same way as the fractional numbers.
i can help, but you need to write the whole question..
Step-by-step explanation:
7.5 is an answer because it is example of cantral angle bisector of circle
You could cross cancel the a and your final answer would be 5/11
Answer:
Margin of error of 0.0485 hours.
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
.
That is z with a pvalue of
, so Z = 1.96.
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 question:

The margin of error is of:



Margin of error of 0.0485 hours.