Question

7. Twenty students were asked whether they were freshmen, sophomores, juniors, or seniors. Their responses are as follows:SRFRFRSRSRSRJRSOSOSRFRFRSRSOFRSOSRSRSRSOConstruct a frequency table (including a relative frequency column) to describe this data.ValueFrequencyRelative FrequencyFRSOJRSR

Answer 1

Frequency is related to the number of times a value of the data occurs.

Relative frequency is the proportion this value occurs in the set of the total number of outcomes, it can be calculated as:

$\begin{gathered} RF=\frac{Frequency}{Total\text{ number of values}} \\ \text{For example:} \\ RF=\frac{5}{20}=0.25 \\ RF=\frac{1}{20}=0.05 \\ RF=\frac{9}{20}=0.45 \end{gathered}$

The frequency table will be: