# Probability work | Mathematics homework help

Probability work | Mathematics homework help.

**Use data from your textbook, page 139, the very low table about a coffee consumption. All final results should be rounded to 4 decimal places.**

**5a.** What is the probability that if two people are chosen, both are 50 and over?

**5b. **If A represents the event “person is 50 and over”, name its complement A’ clearly. If B represents the event “person is having low coffee consumption”, name its complement B’ clearly.

**5c .**What is the probability that a person is under 30 given he/she is having high coffee consumption? What is the probability that a person is having a low coffee consumption given he/she belongs to age group “40 up to 50”?

**5d.** Are events “under 30” and “high consumption“ independent? Give a complete numerical proof.