If somebody could help me with this one that would be great! For some reason I a

Question

If somebody could help me with this one that would be great! For some reason I am having trouble.

The data contains information on 5 individuals who were made to run an hour after consuming an energy drink. x denotes each individual's age and y denotes the distance covered by each individual (non-stop). Question 31 Not yet answered Points out of 1.000 Obs. No.x (age Flag question in (meters years) run) 10 112 2 12 100 56 89 4 59 78 62 43 (Xi-X)2 = 2784.8 (yi-y)2-2781.2 If x is expressed in years, what is the unit in which the sample standard deviation of x is expressed? Select one a. Years squared b. Days O C.Years d. No units or unit free

Explanation / Answer

Question 31,

std. dev. = sqrt(sum((xi - x)^2)/n )

here the unit of numerator is years squared and there is no unit for denominator. And we are taking the square root. Hence the unit of std. dev. is years

Option (c) is correct.

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