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Statistics 2023: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 119 and standard deviation of 21. 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. What is the probability that a randomly selected adult in the US has stage 1 high BP? Round to four decimal places.