Relative Frequencies Probability

Calculate relative frequency of right handed people to the whole group

Calculate relative frequency of left handed people who prefer pie to the whole group

Calculate relative frequency of left handed people who prefer pie

Calculate relative frequency of people who prefer cake that are right-handed

Looking at the two-way table, what does the following mean? $$\frac{10}{100}=0.10=10\%$$   

Looking at the two-way table, what does the following mean? $$\frac{180}{270}=0.67=67\%$$   

Looking at the two-way table, what does the following mean? $$\frac{90}{300}=0.3=30\%$$   

What is the relative frequency of students speaking Arabic?

What is the relative frequency of students speaking Vietnamese?

What is the relative frequency of students speaking Spanish?