4/9 converted into a decimal rounded to the nearest thousand

This question awards 100 ! i really don’t want to fail i will also mark you !

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25