Answer :
Final answer:
The failure rate of a contraceptive method that is 83 percent effective amounts to a 17 percent pregnancy rate. The effectiveness of contraceptive methods can vary significantly, and user compliance plays a significant role in determining the success or failure of a specific contraceptive method.
Explanation:
If a specific contraceptive method is stated to be 83 percent effective, that means it works as intended about 83 percent of the time. The remaining percentage, which would be 17 percent (since 100 - 83 = 17), represents a failure rate. That is, 17 percent of the time, this method does not prevent pregnancy as intended. Therefore, the correct answer to the question, 'A contraceptive method is said to be only 83 percent effective. Thus, its pregnancy rate is' would be D) 17 percent.
The effectiveness of contraceptive measures can vary widely, from less than 1 percent failure rate with certain hormonal methods, sterilization procedures, and intrauterine devices (IUDs), to a 25 percent failure rate for methods such as natural family planning or withdrawal. Compliance with the contraceptive method contributes significantly to its rate of success or failure.
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The pregnancy rate for this contraceptive method is D. 17 percent.
When a contraceptive method is described as 83 percent effective, it means that 83 out of 100 women using this method will not become pregnant over a specified period, typically a year. The remaining percentage, which is 17 percent, represents the failure rate of the contraceptive method, or the percentage of women who may become pregnant despite using it correctly.
The effectiveness percentage reflects how well the method works in preventing pregnancy when used as directed. Therefore, the pregnancy rate, or the likelihood of pregnancy among users, is 17 percent. This is because 100 percent minus the effectiveness rate (100% - 83%) gives the failure rate. Thus, the contraceptive method has a 17 percent pregnancy rate.
