28. Five mark exercise problem I

A teacher asked the students to complete \(60\) pages of a record note book. Eight students have completed only \(32\), \(35\), \(37\), \(30\), \(33\), \(36\), \(35\) and \(37\) pages. Find the standard deviation of the pages yet to be completed by them.

 

Answer:

 

The standard deviation \(=\)