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"Mean" is the same as "average". It's equal to (sum of all the items in the group) divided by (number of items in the group).
You can arrange the letters in group One hundred and twenty-five different ways.
a baker's dozen
26 state names
8 x 4 equals 32. If you are unsure how to do this, imagine that you have four groups of eight items in each group. Then just add up all of the eight items in each group.
The Names of Twenty Twenty are Sam Halliday, Jack Halliday & Sonny Watson-Lang.
(21 x 20 x 19) / (1 x2 x3) = 1330
sam, jack and sonny
Girls' NamesSophieIsabelleEmilyOliviaLilyChloeIsabellaAmeliaJessicaSophiaAvaCharlotteMiaLucyGraceRubyEllaEvieFreyaIslaBoys' NamesJoshuaJackHarryOliverCharlieThomasDanielEthanNoahJamesWilliamMaxJacobGeorgeAlfieSamuelJosephAlexanderDylanOscar
A score is twenty (20).
twenty four
how many is in the group and what are their names?
No, it is not correct grammar. It should be "twenty items or fewer." "Less" is used for uncountable quantities, while "fewer" should be used for countable items like "items."
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a score
A collective noun for a group of names is a list of names.
A 20kg bag of flour.