The collective nouns are a bunch of keys or a ring of keys.
Bunch
A group, as a single entity, would be nominal.
Mean
Yes anova can and should be used to predict correlation between variable's in a single group. This is one of the primary and most common uses of such software.
A nonet.
The Circle of Keys is a diagram of all Major and minor keys signatures. The sharp keys are arranged from the top, moving clockwise. The flat keys are arranged from the top, moving counterclockwise. There are fifteen Major keys: seven sharp keys, seven flat keys, and one key with no sharps or flats. Likewise, there are fifteen relative minor keys. The keys at the bottom of the circle are called enharmonic keys because their tones sound the same but are named and written differently. The Circle of Keys is sometimes called the Circle of Fifths because the keys are arranged an interval of a fifth apart.
Alphanumeric
No, Alicia Keys is not single.
D!
D!
Group - ABBA Hit Single - SOS
it is a group of email names and addresses given a single name
Collective nouns are a bunch of keys, a ring of keys, a set of keys.
numbers 0-9, letters a-z, and the dash - symbol.
Kathryn Keys's birth name is Sarah Margaret Keys.
Nelson Keys's birth name is Nelson Waite Keys.
Basil Keys's birth name is Basil Henry Keys.
SOS by ABBA