Question

please help! logarithmic problem

Answer 1

*waiting*
what's the question ?

Answer 2

how did they get 2 and 8

Answer 3

hmmm not following what the question is

Answer 4

if you're referring to the blue-circled ones
"they" didn't get it, is a given value

Answer 5

change of base formula
\[\huge\rm log_a b = \frac{ \log b }{ \log a }\]

Answer 6

https://controls.engin.umich.edu/wiki/index.php/Basic_statistics:_mean,_median,_average,_standard_deviation,_z-scores,_and_p-valu