Year 12s: what will be the first way you research your future options? >>

S1 Normal Distribution

I don't really understand aiii)

Could someone please explain what I'm suppose to do for this and how to end up at the right value.

I've attached the question for context and the mark scheme.

Thank you

You simply need to have a number large enough for anything to be valid. The number I always remember (as it's in my textbook) is 30, but the mark scheme is simply giving leeway :smile:

hope this helps.

Reply 2

smooo

Original post by lolsweg

You simply need to have a number large enough for anything to be valid. The numberI always remember (as it's in my textbook) is 30, but the mark scheme is simply giving leeway :smile:

hope this helps.

oh ok thank you I understand it now