What is the meaning of Expected_value?

5-letter words containing

• 5-letter words containing d

• 5-letter words containing i

• 5-letter words containing e

• 5-letter words containing v

• 5-letter words containing e

5-letter words starting with

• 5-letter words starting with v

• 5-letter words starting with i

• 5-letter words starting with p

• 5-letter words starting with r

• 5-letter words starting with r

5-letter words in the middle

• 5-letter words in the middle b

• 5-letter words in the middle t

• 5-letter words in the middle z

• 5-letter words in the middle t

• 5-letter words in the middle i

5-letter words ending with

• 5-letter words ending with b

• 5-letter words ending with a

• 5-letter words ending with e

• 5-letter words ending with o

• 5-letter words ending with u

5-letter words excluding

• 5-letter words excluding c

• 5-letter words excluding e

• 5-letter words excluding u

• 5-letter words excluding k

• 5-letter words excluding s