Question

which is the joint relative frequency for the people who can only see the sunset?
$\frac{5}{38}$
$\frac{7}{38}$
$\frac{12}{38}$
$\frac{14}{38}$

Explanation:

Step1: Define joint - relative frequency

Joint relative frequency is the frequency in a particular category divided by the total number of data points.

Step2: Identify the category

The category of people who can only see the sunset is the cell where there is a sunset and no sunrise, which has a frequency of 12.

Step3: Calculate joint - relative frequency

The total number of data points is 38. So the joint - relative frequency is $\frac{12}{38}$.

Answer:

$\frac{12}{38}$