Answer:

Step-by-step explanation:
- Simplify:

I hope this helps!
Answer:
forma is h * w / 2 and y and x have no value because there are no numbers to calculate.
Step-by-step explanation:
hope this helps!!!!!
Personally, I would recommend reading this as a fraction, and splitting up mantissa from the power of 10. (Mantissa refers to the number 1.23 in
.)

Now just reduce each fraction:


So

since
.
Answer:
95% Confidence interval: (0.0429,0.0791)
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 679
Number of anonymous websites, x = 42

95% Confidence interval:


Putting the values, we get:

is the required confidence interval for proportion of all new websites that were anonymous.