The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 120 millimeters of mercury (mmHg) and standard deviation of 26. Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. Stage 1 high BP is specified as systolic BP between 140 and 160. Give your answers rounded to 4 decimal places. a. What is the probability that an adult in the USA has stage 2 high blood pressure? b. What is the probability that an adult in the USA has stage 1 high blood pressure? c. Your doctor tells you you are in the 30th percentile for blood pressure among US adults. What is your systolic BP? mmHg

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