Why is is?

[Trickedem]

I am not really after answers, but sometimes don't you wonder why something is like it is. So here is my question of the afternoon.
Why do you get so few of the blue and pink bobbly jelly ones in a packet of liquorice all sorts.

 

[Marshmallow_Fluff]

"Blue" must be expensive 'cause the same happens in M&M's!!

 

[Sandra6]

Why did Asda stop making the black midget gems black, and make them purple instead??!!!

 

[Archie_tect]

Blue smarties used to send Miss A_T's best friend completely hyper!

 

[marinyork]

Some quality control person at the factory really likes the blue and pink ones ?