Stefan Tigges on Radiopaedia.org

Stefan Tigges

Professor of Radiology, Emory University School of Medicine

Thoracic Radiologist interested in education and using comics/drawing to teach. No pharmaceutical or medical device conflict of interest.

Disclosures:
  • Nothing to disclose
169 results found
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Question 2865

What is the correct notation for negative predictive value stated as a conditional probability?

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Question 2866

The probabilities of all events (outcomes) in a sample space must sum to what number?

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Question 2867

Steph Curry of the NBA’s Golden State Warriors has a career successful free throw percentage of about 90%. What is his probability of missing a free throw?

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Question 2868

Steph Curry of the NBA’s Golden State Warriors has a career successful free throw percentage of about 90%. What is his probability of making 2 consecutive free throws?

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Question 2869

What is the probability of rolling a 1, 2, or a 3 on a single roll of a fair 6-sided die?

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Question 2870

You are told that the roll of a fair 6-sided die has resulted in an odd number. What is the probability that the resulting number is 3?

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Question 2871

You are told that the roll of a fair 6-sided die has resulted in an odd number. What is the probability that the resulting number is a 3 or a 5?

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Question 2872

If you know the probability of an event occurring, which rule would you use to calculate the probability of that event not occurring?

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Question 2873

What rule is used to calculate the probability of either of 2 or more events occurring?

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Question 2874

What rule is used to calculate the probability of 2 or more events all occurring?

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Question 2875

What conditional probability best describes a p-value?

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Question 2876

Which of the following is characteristic of a Bayesian analysis?

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Question 2877

Which of the following is the correct formula for calculating the sensitivity of a diagnostic test?

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Question 2878

Which of the following is the correct formula for calculating the specificity of a diagnostic test?

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Question 2879

Which of the following is the correct formula for calculating the positive predictive value of a diagnostic test?

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Question 2880

Which of the following is the correct formula for calculating the negative predictive value of a diagnostic test?

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Question 2881

In the 1960s, the Health Insurance Plan of New York studied the efficacy of mammography for breast cancer detection. In their trial, there were 132 true positive, 47 false negative, 985 false positive and 62,295 true negative mammograms. What was the prevalence of disease?

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Question 2882

In the 1960s, the Health Insurance Plan of New York studied the efficacy of mammography for breast cancer detection. In their trial, there were 132 true positive, 47 false negative, 985 false positive and 62,295 true negative mammograms. What was the sensitivity of mammography?

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Question 2883

In the 1960s, the Health Insurance Plan of New York studied the efficacy of mammography for breast cancer detection. In their trial, there were 132 true positive, 47 false negative, 985 false positive and 62,295 true negative mammograms. What was the specificity of mammography?

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Question 2884

In the 1960s, the Health Insurance Plan of New York studied the efficacy of mammography for breast cancer detection. In their trial, there were 132 true positive, 47 false negative, 985 false positive and 62,295 true negative mammograms. What was the positive predictive value of mammography?