Hello,
Question- In the picture
Answer- The correct answer is A Because all you do is multiply buy 2 thats how simple it is.
Important- If my answer was enough to help you understand please mark me as brainliest thank you and have the best day ever!
9 1/4
= 37/4
Therefore the reciprocal will just be the inverse which is...
=4/37
When the variance of a sample of 144 observation is 576 then, the standard deviation of the sample equals 24
The variance is a measure of variability. It is calculated by taking the average of squared deviations from the mean. Variance tells you the degree of spread in your data set
Standard deviation is a statistic that measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance.
Given,
The number of samples = 144
The variance = 576
The standard deviation is the square root of variance
The standard deviation =
=24
Hence, when the variance of a sample of 144 observation is 576 then, the standard deviation of the sample equals 24
Learn more about Standard deviation here
brainly.com/question/16555520
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