What is the overlap of Data Set 1 and Data Set 2? high moderate low none Two line plots aligned vertically so that their labels
match. The first line plot is from 20 to 60, is labeled Data Set 1, and shows the following values that appear as x marks above the line. One x mark above 20. Three x marks above 25. Three x marks above 30. Two x marks above 35. One x mark above 40. The second line plot is also from 20 to 60, is labeled Data Set 2, and shows the following values that appear as x marks above the line. One x mark above 35. Two x marks above 40. Three x marks above 45. Two x marks above 50. One x mark above 55. One x mark above 60. Image: Do not include the blue squiggly lines under the Xs.
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The predictive value of a positive test is is 0.43.
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This question is solved using the concepts of sensitivity and specificity.
- Sensitivity: It is the true negative rate, that is, the proportion of people without the disease that test negative.
- Specificity: It is the true positive rate, that is, the proportion of people with the disease that test positive.
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- Sensitivity of 60% means that of the 100 - 10 = 90% of people without the disease, 60% test negative and 100 - 60 = 40% test positive.
- Specificity of 70% means that of the 10% with the disease, 70% test positive.
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The predictive value of a positive test is:
Probability of a positive test, which is 40% of 90% plus 70% of 10%, so:
The predictive value of a positive test is is 0.43.
A similar question is given at brainly.com/question/22373775