Question

can anyone check these answers - probability

Answer 1

@amistre64

Answer 2

ok, ive reviewed it, now can you tell me your thought process that led you to the solutions you chose?

Answer 3

aww so there are some wrong? lol

Answer 4

not saying if they are right or wrong yet, but i want to know why you did what you did :)

Answer 5

so for P(A) i used (0.28+0.09+0.04+0.07)

Answer 6

P(B)= 0.52+0.28+0.09

Answer 7

and i say false because P(A) and P(B) overlap

Answer 8

you did very well then :) i agree with your conclusions

Answer 9

thank u soo much! can u check one more?

Answer 10

perhaps

Answer 11

@amistre64 are u looking at it? :)

Answer 12

im drawing up a table ... and working some calculations

im not familiar with working with the specifity and sensitivity numbers, but here is what i get

Answer 13

.9985a + .006b = .01,
.0015a + .994b = .99

Answer 14

i'm pretty sure the ones before are right. im just not sure about the last on tho. the multiple choice one

Answer 15

can you tell me how you worked your solutions?

Answer 16

is this one correct: This conditional probability tells us how likely it is that someone has HIV if that randomly chosen person has received a positive test result.

Answer 17

?

Answer 18

your conditional question sounds good to me, the likelihood that they have HIV given that they were randomly selected form those who test +

Answer 19

just for clarification, my table got mixed around and is not accurate :)

Answer 20

no worries! i actually submitted it and it was correct. thanks for your help :)

Answer 21

:) youre welcome