To determine the correct answer, let's analyze the given options one by one:
1. a normal distribution:
- A normal distribution is a type of continuous probability distribution for a real-valued random variable. This is represented by a bell-shaped curve and does not list data values along with their counts.
2. a frequency distribution:
- A frequency distribution is a table that displays the frequency (or count) of various outcomes in a sample. It shows how the data values are distributed among the intervals or categories, thus listing data values along with their counts.
3. a cumulative frequency distribution:
- A cumulative frequency distribution is a table or graph that shows the cumulative total of frequencies up to the upper boundary of each class or category. It summarizes the number of observations that fall below the upper boundary of each interval but does not simply list data values with their counts.
4. a relative frequency distribution:
- A relative frequency distribution displays the relative frequencies of each data value, typically expressed as a percentage or fraction of the total number of observations. It focuses on the proportion of each category rather than the absolute counts.
Given these analyses, the correct answer is:
O a frequency distribution
This is the type of table that lists data values along with their counts.
