Certain statistics measures are unbiased. Which of the following show three unbiased estimators?

a. variance, standard deviation, median

b. mean, variance, proportion

c. mean, median, range

d. range, standard deviation, median

4 answers

I think it's either b or d, but I'm not sure.
tbh im thinking b but im not sure either im still trying to figure it out
tbh im thinking b but im not sure either i neva seen a question like this
it should be b or d
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