Question

I need help with this text question :)

Thanks for the help :)

Answer 1

Well (a) should be 13.5%+2.35%=16% of the students are taller than 66.7"
And (b) I think is like 13.5%+34%+34%+13.5%=95% of students.\
So we know that \[\frac{ x }{ 100 }=\frac{ 95 }{ 100 } \]
So then cross multiply and get 100x=28500
So x=285
285 students are between 61.6 and 68.4

That's my best guess.

Answer 2

Oh and where it says \[\frac{ x }{ 100 }\] it's supposed to say \[\frac{ x }{ 300 }\]

Answer 3

thanks :D