Question
Mathematics Question on Probability
A covid-19 vaccination reduces the probability of getting covid-19 infection from 0.4 to 0.1. In a city, 45% people are vaccinated. Then the probability that a non-vaccinated person chosen at random in the city gets covid-19 infection is
A
0.55
B
0.45
C
0.32
D
0.22
E
0.18
Answer
0.22
Explanation
Solution
The correct option is (D): 0.22