Answer:

Step-by-step explanation:
For calculating how large is a sample size that is large enough for estimating the population mean, we should consider the error that we are ready to agree, because the sample size depends on this error.
If your error is α, the sample size would be:

Where N: the population size, in your case N = 100
δ: the standar deviation
Z: the value associated to the error in the standard normal table
E: error
Answer:
22%
Step-by-step explanation:
Well if the ramp can hold 1000lbs and 6 people all weight 780 in total (they must be really fat lol, but anyway) we can make the following fraction.
780/1000
So now we simplify the fraction to 39/50.
And do 39 / 50 = .78
To make that a percent we move the decimal point 2 times to the right so 78% of the ramp‘s capacity is being used meaning there is stil 22% capacity left.
I think c!!!!!!!!!!!!!!!!!!!!
Answer:
131/5
Step-by-step explanation:
5^2=25
25-4/5 +2
=131/5 or 26.2
Answer: A-
Step-by-step explanation:
Took the quiz