Question

a cafeteria kept track of the type of milk students chose at lunch today.

complete the two - way table to display the relative frequencies by row.

Explanation:

Step1: Calculate the total number of 8th - grade students

The total number of 8th - grade students is \(28 + 22=50\).

Step2: Calculate the relative frequency of plain milk for 8th - grade students

The relative frequency of plain milk for 8th - grade students is \(\frac{28}{50}\times100\% = 56\%\).

Step3: Calculate the relative frequency of chocolate milk for 8th - grade students

The relative frequency of chocolate milk for 8th - grade students is \(\frac{22}{50}\times100\%=44\%\).

Answer:

The relative frequency of plain milk for 8th - grade students is \(56\%\) and the relative frequency of chocolate milk for 8th - grade students is \(44\%\).