SQL Server Cardinality Estimator 2014

During the check of New Cardinality Estimator in 2014, I found a strange thing and have one confusion let me define my problem first. I was using below code to generate the database and insert some data in SQL Server 2014.

Create database CETEST2014
go
USE CETEST2014
go
create table xtTraceTest
(
custcode int identity(10001,1) Primary Key,
 balance int,
 state_name varchar(50),
 country varchar(50)
)
go
insert into xtTraceTest(balance,state_name,country) values(RAND(),'UP','INDIA')
go 1000
insert into xtTraceTest(balance,state_name,country) values(RAND(),'HARYANA','INDIA')
go 1233
insert into xtTraceTest(balance,state_name,country) values(RAND(),'KERALA','INDIA')
go 677
insert into xtTraceTest(balance,state_name,country) values(RAND(),'CALABRIA','ITALY')
go 1872
insert into xtTraceTest(balance,state_name,country) values(RAND(),'GOA','INDIA')
go 4534
insert into xtTraceTest(balance,state_name,country) values(RAND(),'MP','INDIA')
go 2763
insert into xtTraceTest(balance,state_name,country) values(RAND(),'GANGSU','CHINA')
go 86
insert into xtTraceTest values(RAND(),'ASSAM','INDIA')
go 123
create nonclustered index IX_xtTraceTest on xtTraceTest(country,state_name) include (balance)

go

--then i ran below query with include actual execution plan

Select custcode,balance from xtTraceTest 
where country='INDIA' and state_name='GOA' 

as per execution plan... estimated number of rows are 4157 and actual number of rows 4534. this execution plan was using index seek on nonclustered index..

below statistics histogram created due to automatic stats creation for non clustered index creation [under new CE]

IN My case histogram contain:

Name                            Updated                         Rows                           Rows Sampled                    Steps                           Density                        Average Key Length              String Index                    
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
IX_xtTraceTest                  Jun 23 2014  9:04PM             12288                           12288                          3                               0                              13.06315                        YES                                                            12288                           

All Density                     Average Length                  Columns                         
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
0.3333333                       5                               country                        
0.125                           9.06315                         country, state_name             
8.138021E-05                    13.06315                        country, state_name, custcode 

so from histogram stats, density vector second row [0.125                           9.06315                         country, state_name ] 

total estimated number of rows for above select query should be = density * total number of rows = 0.125 * 12288 = 1536
if you will use the same query with legacy cardinalty estimator then that will show you the estimated number of rows = 1536

so my question here is : is the histogram still created based on Legacy cardinality estimator? even i have created database on SQL Server 2014 with compatibility level 120 . however when i am running the select query then it is using new cadinality estimator and estimated number of rows are 4157 while as per the created histogram it shuold be 1536

am i missing something here or is it an issue?

thanks:

prince rastogi