Question

the table above shows how many people have pizza or pasta as their favorite food at speer. a person was chosen randomly and asked to elaborate their thoughts. find the following probabilities.

d. p(person is a teacher)

e. p(pizza)

Explanation:

Step1: Calculate total number of people

Total number of people = 800 + 400+20 + 30=1250

Step2: Calculate P(person is a teacher)

Number of teachers = 20 + 30 = 50. So $P(\text{person is a teacher})=\frac{50}{1250}=\frac{1}{25}$

Step3: Calculate P(pizza)

Number of people who like pizza = 800+20 = 820. So $P(\text{pizza})=\frac{820}{1250}=\frac{82}{125}$

Answer:

d. $\frac{1}{25}$
e. $\frac{82}{125}$