Hi Umer Jamil,
Analysis Services requires Microsoft SharePoint Server 2010 for its SharePoint integration feature, named Microsoft SQL Server PowerPivot for SharePoint. You can deploy both PowerPivot for SharePoint and Reporting Services in the same SharePoint farm if you are using SharePoint Server 2010.
Reporting Services can run on a broader range of SharePoint products and technologies than Analysis Services. You can deploy a report server in any standalone SharePoint server or server farm that is based on Windows SharePoint Services 3.0 or later, or Microsoft Office SharePoint Server 2007 or later.
For more information, please refer to:
http://msdn.microsoft.com/en-us/library/ee210689(SQL.105).aspx
http://msdn.microsoft.com/en-us/library/ee210649(SQL.105).aspx
Hope this helps.
Lu Zou