Approximately 20% of IU students suffer from triskaidekaphobia. IU Health offers a free screening test for triskaidekaphobia that is accurate 90% of the time, which means that someone who has triskaidekaphobia will test positive with probability 0.90, and someone who does not have triskaidekaphobia will test negative with probability 0.90. You take the screening test and the result is negative. What is the probability that you in fact really do not have triskaidekaphobia? (А) 0.18 (B) 37 (C) 3/37 (D) 0.72 (E) 0.08 (F) 13 (G) 0.02 (H) 13 A
Approximately 20% of IU students suffer from triskaidekaphobia. IU Health offers a free screening test for triskaidekaphobia that is accurate 90% of the time, which means that someone who has triskaidekaphobia will test positive with probability 0.90, and someone who does not have triskaidekaphobia will test negative with probability 0.90. You take the screening test and the result is negative. What is the probability that you in fact really do not have triskaidekaphobia? (А) 0.18 (B) 37 (C) 3/37 (D) 0.72 (E) 0.08 (F) 13 (G) 0.02 (H) 13 A
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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Transcribed Image Text:Approximately 20% of IU students suffer from triskaidekaphobia. IU Health offers a
free screening test for triskaidekaphobia that is accurate 90% of the time, which means
that someone who has triskaidekaphobia will test positive with probability 0.90, and
someone who does not have triskaidekaphobia will test negative with probability 0.90.
You take the screening test and the result is negative. What is the probability that
you in fact really do not have triskaidekaphobia?
(A) 0.18
(B) 7
(C) 3/7
(D) 0.72
(E) 0.08
(F) 3
(G) 0.02
(H) %13
O A
O B
OF
E.
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