Answer:
[tex]P=\frac{5!2!4!3!3!5!}{17}[/tex]
Step-by-step explanation:
Here we have 5 groups of books from 5 different subjects, but, those groups consists of different number of books and they must be arranged together.
We can arrange them on the following way:
2 Engineering =2!
4 Computer Science =4!
3 Statistics =3!
3 Biology =3!
5 Music books =5!
But, also, those 5 groups can change their places and they can be arranged on 5! ways, so we can arrange them on 5!2!4!3!3!5! ways.
But, required probability will be:
[tex]P=\frac{5!2!4!3!3!5!}{17}[/tex]
because we have in total 17 books.
