You are senior VP of analytics for Target and are examining customer data for the most recent 12 months. The dataset is drawn from a sample 20,000,0000 customers. The data find that that each customer spends, on average, $212.35 per year at Target and the standard deviation of that spend is $38.22 per year. You are interested in a segment of these customers. What percentage of Target's of 20,000,000 customers spend more than $250.57 per year?