It is 54 for 1 and 2 is 2520 you multply the lenght by the whith and divide by 2
Answer:
Step-by-step explanation:
In statistics, whenever full population cannot be surveyed, a random sample can be taken and from the observations population behaviour can be estimated.
Here given that there are 200 members. Instead of collecting data from all 200, 20 members are randomly taken.
The sample mean x bar can be estimated to give an idea the population mean also.
ACcording to central value theorem, means of different samples will follow a distribution with mean = population mean and std deviation = std dev of sample/square root of n
Hence we fix confidence interval as Mean + or - Z critical * std error
This gives us an idea about within which means will lie for different samples and hence give an idea about population mean also.
Answer:
3/-5
Step-by-step explanation:
Rise over Run is what Slope is. So basically we look at it and go how do we get from -6 to -3? Well you add 3, so thats your top number. We look at the bottom of the fractions now. We use the same thought process. How do you get from 14 to 9? Subtract 5. So our slope is 3/-5. Hope this helps
Answer:
If you mean the percentage error then look at this
Step-by-step explanation:
% error = <u>Estimated </u><u>-</u><u> </u><u>Actual </u> x <u>100 </u>
Estimated. 1
% error = <u>7000 - 5600</u> x <u>100 </u>
7000. 1
% error = <u>1400 x </u><u>100</u>
7000
% error = 140000/7000
% error = 20%
