I have 3 groups with 3 different number(s) of subjects in each one. Should I say
The number/numbers of subjects in groups 1, 2, and 3 is/are x, y, and z, respectively.
I presume that since I have 3 groups, the subject should be numbers.
I have 3 groups with 3 different number(s) of subjects in each one. Should I say
The number/numbers of subjects in groups 1, 2, and 3 is/are x, y, and z, respectively.
I presume that since I have 3 groups, the subject should be numbers.
The number of is correct.
The number of is used for plural nouns and therefore is correct.