(I a Frequency Distribution Is Grouping of Data into Classes

Multiple Choice

(i. A frequency distribution is grouping of data into classes showing the number of observations in each class. (ii) In constructing a frequency distribution, you should try to have open-ended classes such as "Under $100" and "$1,000 and over".
(iii) A cumulative frequency distribution is used when we want to determine how many observations lie above or below certain values.

A) (i) , (ii) and (iii) are all correct statements.
B) (i) and, (ii) are correct statements but not (iii) .
C) (i) and, (iii) are correct statements but not (ii) .
D) (ii) and, (iii) are correct statements but not (i) .