Free Exam: RamCharanPMPH
Number of Questions in Test: 33
Number of Questions in Preview: 5
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Assuming that mammography has a sensitivity of 90% and a specificity of 98% and that consecutive tests are independent, what is the probability that a woman with breast cancer will have a negative yearly screening mammogram for two consecutive years?
| Type: | Multiple choice |
| Points: | 4 |
| Randomize answers: | No |
Question 2
Which of the following measures is used frequently as a denominator to calculate the incidence rate of a disease?
| Type: | Multiple choice |
| Points: | 4 |
| Randomize answers: | No |
Question 3
Among women aged 18 to 34 in a community, weight is normally distributed with a mean of 52 kg and a standard deviation of 7.5 kg. What percentage of women will have a weight over 59.5 kg?
| Type: | Multiple choice |
| Points: | 4 |
| Randomize answers: | No |
Question 4
In nine families surveyed, the numbers of children per family were 4, 6, 2, 2, 4, 3, 2, 1, and 7. The mean, median, and mode numbers of children per family are, respectively
| Type: | Multiple choice |
| Points: | 4 |
| Randomize answers: | No |
Question 5
The probability of being born with condition A is 0.10 and the probability of being born with condition B is 0.50. If conditions A and B are independent, what is the probability of being born with either condition A or condition B (or both)?
| Type: | Multiple choice |
| Points: | 4 |
| Randomize answers: | No |