Hello, I sincerely hope that you can help me with this question. I am stuck. Thank you!

The question:

Consider the data set.

• 2,3,4,7,9

(a)Find the range. (Enter an exact number.)

(b)Use the defining formula to compute the sample standard deviations. (Enter a number. Round your answer to two decimal places.)

(c)Use the defining formula to compute the population standard deviation. (Enter a number. Round your answer to two decimal places.)