Jawapan

Jawapan Paling Bijak!
2015-10-03T01:02:44+08:00
Varians
= 135/5 - k^2
= 27 - k^2

sisihan piawai = √varians
4m = √(27 - k^2)
(4m)^2 = 27 - k^2
k^2 = 27 - (4m)^2
k = √27 - 4m
2 3 2