Question

Find the standard deviation for the given data. Round your answer to one more decimal place than the original data.

20.9, 10.2, 26.2, 48.8, 20.0, 24.9

Answer 1

add them up , then divide by 6 to get the mean, should be 25.1666...
take the difference between each data value and the mean, then square that result
e.g. 20.9-mean = -4.26666... , square that = 18.20444...
repeat for the other 5
add up those 6 squares
divide by 6, then take the square root

calculator.net/standard-deviation-calculator.html

put the usual triple w in front of the link