jfy3341

14.02.2020 • 

Mathematics

Is an unbiased estimator of the variance σ2. In other words, E(s2) = σ2. Is s = √s2 an unbiased estimator of the standard deviation σ? If not, does s tend to underestimate or overestimate the standard deviation? Hint: Very little computation is needed. Start by writing the formula for computing the variance of s.

Ответ:

janeou17xn

15.01.2022

Mathematics

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84

Step-by-step explanation:

because you did 30=72 already and you just need to find the extra 5 mins

you do 25 divided by 5 =5

60 divided by 5=12

then do 30 mins (72) + 5 mins (12) = 35 mins (72+12+84)

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