Question

The Venn diagram above shows the results of a survey of 200 readers on the type of magazine they read.

If a respondent is chosen at random, what is the probability that the respondent reads a technology OR a business magazine?
ОА. 11/20
OB. 9/20
Ос. 3/5
OD. 13/20

Answer 1

11/20

Explanation:

The total number of readers is 200

`80 + 10 + 60 + 50 = 200`

The probability of an event is the number of the possible outcomes leading to the event over the total number of outcomes

thus, the number of people reading either a business magazine or a technology one is

`P = (50 + 60 )/(200) = (110)/(200) = (11)/(20)`