The Bee Creek bridge will collapse if there is 35,000 pounds of weight on it. A random llama's weight is N(430, 1702) in pounds. Tomorrow at 3:43pm there will be 81 llamas on the Bee Creek bridge. The statistician is hired at 3:33pm to figure out the probability that the bridge will collapse. What is the probability? (hint, what would the mean be?)

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