When Radiation Exposure Occurs During Pregnancy,the Greatest Risk of Birth

question 33

Multiple Choice

When radiation exposure occurs during pregnancy,the greatest risk of birth defects occurs when the exposure:
1) to the uterus exceeds 5 rad.
2) occurs within the first trimester of pregnancy.
3) occurs within the third trimester of pregnancy.

• A) 1 and 2 only
• B) 1 and 3 only
• C) 2 and 3 only
• D) 1, 2, and 3

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Definitions:

Population Mean

The average value of a property in a population.

Confidence Interval

A range of values, derived from the sample data, that is likely to contain the value of an unknown population parameter, with a certain degree of confidence.

Sample Size

The number of observations or data points collected from a subset of a larger population for the purposes of statistical analysis.

Population Standard Deviation

The square root of the variance of a set of values in a population, measuring how spread out the values are.