85 Fingerprint expertise. A study published in Psychological Science (August 2011) tested the accuracy of experts and novices in identifying fingerprints. Participants were pre- sented pairs of fingerprints and asked to judge whether the prints in each pair matched. The pairs were presented under three different conditions: prints from the same in- dividual (match condition), nonmatching but similar prints (similar distracter condition), and nonmatching and very dissimilar prints (nonsimilar distracter condition). The per- centages of correct decisions made by the two groups un- der each of the three conditions are listed in the table. Condition Match Similar Distracter Nonsimilar Distracter Fingerprint Experts 92.12% 99.32% 100% Novices 74.55% 44.82% 77.03% Source: Based on J. M. Tangen, M. B. Thompson, and D. J. McCarthy, "Identifying Fingerprint Expertise," Psychological Science, Vol. 22, No. 8, August 2011 (Figure 1). a. Given a pair of matched prints, what is the probability that an expert failed to identify the match? b. Given a pair of matched prints, what is the probability that a novice failed to identify the match? c. Assume the study included 10 participants, 5 experts and 5 novices. Suppose that a pair of matched prints was presented to a randomly selected study participant and the participant failed to identify the match. Is the participant more likely to be an expert or a novice?
85 Fingerprint expertise. A study published in Psychological Science (August 2011) tested the accuracy of experts and novices in identifying fingerprints. Participants were pre- sented pairs of fingerprints and asked to judge whether the prints in each pair matched. The pairs were presented under three different conditions: prints from the same in- dividual (match condition), nonmatching but similar prints (similar distracter condition), and nonmatching and very dissimilar prints (nonsimilar distracter condition). The per- centages of correct decisions made by the two groups un- der each of the three conditions are listed in the table. Condition Match Similar Distracter Nonsimilar Distracter Fingerprint Experts 92.12% 99.32% 100% Novices 74.55% 44.82% 77.03% Source: Based on J. M. Tangen, M. B. Thompson, and D. J. McCarthy, "Identifying Fingerprint Expertise," Psychological Science, Vol. 22, No. 8, August 2011 (Figure 1). a. Given a pair of matched prints, what is the probability that an expert failed to identify the match? b. Given a pair of matched prints, what is the probability that a novice failed to identify the match? c. Assume the study included 10 participants, 5 experts and 5 novices. Suppose that a pair of matched prints was presented to a randomly selected study participant and the participant failed to identify the match. Is the participant more likely to be an expert or a novice?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
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