A medical test gives a correct result 90% of the time for infected individuals and 95% of the time for non-infected individuals. All members of the population are tested. The probability that a person is infected given they have a positive test result is 0.6. What proportion of the population is infected?

The proportion of the population which is infected is   =0.07692

Step-by-step explanation:

Let the events be,

A: a person is infected.

B:   the test result is positve

According to the question we have,

So

Hence,

Now

The probability that a person is infected is  

So the probability that a person is infected is =0.07692.

The proportion of the population which is infected is  

Hence the proportion of the population which is infected is   =0.07692

neither i nor ii 56 / 4.9 = 11.91489362 and 82 / (11+5) =5.125 so i is wrong

ii. (24/8+2) times 3 = 15 and (42+9)/2 =25.5

step-by-step explanation:

56

answer: finding the extract measurements and knowing the points

step-by-step explanation: