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What does variance +/- 30 days mean in excel?

Solved by S. L. in 25 mins

Hi, what does the following IF function mean?
IF(X6<=1,'Input Data'!P6*Calculation

Solved by M. B. in 16 mins

Use the RANDBETWEEN function in Microsoft Excel to select three simple random samples of 10, 50 and 500 days from the population. Using just your samples, calculate the mean, median, standard deviations and mode if applicable for each random sample. [10%].
Compare these outcome figures. How do the mean and SD change with sample size? [10%].

Solved by G. Q. in 15 mins

how do you calculate percentile rank in excel when the question mean is known for 10 companies. Example the Mean is 3.58 from the sum of the 10 companies Mean divided by 10. The lowest Mean of the 10 organizations is 2.85 and the highest Mean is 4.22
Our goal is to be able to show the percentile rank of the 10 companies for their mean.

Solved by X. W. in 27 mins

what does this formula mean in excel =$C8/SUM($J6:$J7)*$J10

Solved by V. F. in 12 mins