To assign numerical value to each questionnaire, a researcher decides to use a four-digit code. There are probably how many questionnaires in the data set?

To assign numerical value to each questionnaire, a researcher decides to use a four-digit code. There are probably how many questionnaires in the data set?



a.

323

b.

99

c.

999

d.

576

e.

1249



Answer: E


Learn More :