Austin records the weights in pounds of nine fish in the aquarium. the data is shown in the list. 8, 7.5, 7.6, 3, 7.4, 7.9, 8.1, 2, 7.7. Move words to the blanks to best describe the best measure of variability for this data. The best measure of variability for the data is the because the distribution is .
Interquartile range
Mean
Mean absolute deviation
Median
Skewed
Symmetric
Uniform

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

$14.70 if you add all of them up and divide by 5.00 you will get 14.7 or 14.70