Issue 1355 : Not corrected properly

[Nk911]

Please make corrections properly , I have raised Issue # 1355, half of the fixes were done , but it still not fixed completely even after commenting on that Issue , please refer the attached picture and comment on 1355

[Nk911]

also include the definition of control stddev wherever applicable, Please take the confirmation before closing the issue

[baumanab]

Good catch. The quiz has been updated. Alignment with other quizzes as well as additional explanation will take place this week.

[Nk911]

Thanks