The pie chart below shows music preferences What is the prob

The pie chart below shows music preferences. What is the probability that a person selected at random prefers either country or jazz? The probability that a person selected at random prefers either country or jazz is .

Solution

P(either country or jazz) = P(country) + P(jazz) - P(both countryand jazz)

= 0.24 + 0.19 - 0

= 0.43 = 43%

Note that individual probabilities are same as their percentages, and since all 5 categories are disjoint, P(both) part will always be zero.