N stands for the frequency of the data. For example in a question with following numbers: 4,6,7,8,9,12,16 the n Will be 7 because these are 7 numbers in total

Which of the following is an example of a nominal variable?

In statistical formula N stands for number for example mean = Efx/ N that is summation of the frequency and x divided by number of terms therefore N means number of terms

The number of scores is usually denoted by N. Answer number two is the right answer.

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