Tyrrheniella

Tyrrheniella is a genus of land snails, terrestrial pulmonate gastropod molluscs in the family Hygromiidae, the hairy snails and their allies.

Tyrrheniella
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
Superfamily:
Helicoidea
Family:
Hygromiidae
Genus:
Tyrrheniella

Giusti & Manganelli, 1989

Species

Species in the genus Tyrrheniella include:

gollark: P(3 heads) is just 1/8, P(2 heads) is 1/8 * 3 = 3/8 (there are 3 outcomes (HHT, HTH, THH) producing it and they each have 1/8 probability), so add those.
gollark: The probability of 2 or more heads is the probability of 2 or 3 heads.
gollark: No.
gollark: Yes.
gollark: What are you trying to calculate?

References


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