Listed below are the numbers of hurricanes that occurred in each year in a certain region. the data are listed in order by year. find the range, variance, and standard deviation for the given sample data. include appropriate units in the results. what important feature of the data is not revealed by any of the measures of variation?

Step-by-step explanation:

We have data in order

1, 7, 9, 10, 10, 12, 13, 14, 15, 16, 16, 16, 16, 20

Range = max - min=20 - 1=19 hurricanes

Standard deviation(sample)=

for the given data=

standard deviation =hurricanes

Variance=(standard deviation)²=hurricanes

594 square inches

step-by-step explanation:

vote !

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.