Question

3All 6 members of a family work. Their hourly wages (in dollars) are the following.26, 11, 12, 40, 21, 22Send data to calculatorAssuming that these wages constitute an entire population, find the standard deviation of the population. Round your answer to two decimal places.

Answer 1

Bearing in mind that the formula for the population standard deviation is

${\sigma={\sqrt{{\frac{1}{N}}\sum_{i=1}^{N}(x_{i}-\mu)^{2}}}}$

Using the calculator and remembering that we are assuming that the information is about the whole population.

The standard deviation requested is equal to 10.60.