Data from the year 2017-18 National Health and Nutrition Examination Survey (NHANES) survey includes laboratory measurements on a random sample of more than nine-thousand 18-65 year old persons in the United States. The National Health and Nutrition Examination Survey (NHANES) includes laboratory results on a random sample of 9.254 U.S. adults. Below, please find boxplots and summary statistics of blood lead levels presented separately by reported biological sex (when given only options, male or female) at the time of the measurement. Male n= 4,557 = 1.25 / = 1.60 / Percentiles: 5th : 0.30 25th: 0.5 50th: 0.9 75th: 1.5 95th: 3.2 Female n= 4,657 = 0.9 / = 0.9 / Percentiles: 5th : 0.2 25th: 04 50th: 0.7 75th: 1.1 95th: 2.3

The relative risk of having high blood lead levels (greater than 3.20 micrograms/dL) for the female sample compared to male sample is 0.30. What percentage of persons in the female sample have high blood lead levels?

a. 3.6 %

b. 1.5 %

c. 6.5 %

d. - 70%