Question

the table below shows the favorite movie theater snack for adults and children.

	popcorn	candy	hot dogs	total
children	15	8	2	25
total	35	10	5	50

what is the join relative frequency for adults that like to eat popcorn?
1/2
4/7
4/5
2/5

Explanation:

Step1: Recall join - relative frequency formula

Join relative frequency = $\frac{\text{Frequency of the category}}{\text{Total frequency}}$

Step2: Identify relevant frequencies

The frequency of adults who like popcorn is 20, and the total frequency of all data is 50.

Step3: Calculate join - relative frequency

$\frac{20}{50}=\frac{2}{5}$

Answer:

$\frac{2}{5}$