To find the joint relative frequency of being female and attending a drama movie, you need to consider the number of females who attended the drama movie and compare that to the total number of attendees.
1. Start by identifying the number of females who attended the drama movie. According to the table, this number is 151.
2. Next, determine the total number of attendees. According to the table, the total number of attendees is 479.
3. The joint relative frequency is found by dividing the number of females who attended the drama movie by the total number of attendees. This means you divide 151 by 479.
So, the joint relative frequency of being female and attending a drama movie is:
[tex]\[ \frac{151}{479} \approx 0.315 \][/tex]
Therefore, the correct answer is:
C. Divide 151 by 479.
