A parallelogram has a base of 45 meters and a height of 11 meters what is the area of the parallelogram?
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The minimum sample size required to estimate the mean usage of water = 2225.07
What is Standard deviation?
In statistics, the standard deviation (SD, also represented by the Greek letter sigma σ or the Latin letter s) is a measure that is used to quantify the amount of variation or dispersion of a set of data values.
We can find the minimum sample size required to estimate the mean usage of water as shown below:
Standard deviation
Margin of error E=0.15
Critical value for 95% confidence interval = 1.96
Required minimum sample size:
=2225.07
Hence, the minimum sample size required to estimate the mean usage of water = 2225.07
Learn more about Standard deviation here:
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