Suppose a continuous probability distribution has an average of μ=35 and a standard deviation of σ=16. Draw 100 times at random with replacement from this distribution, add up the numbers, then divide by 100 to get their average. To use a Normal distribution to approximate the chance the average of the drawn numbers will be between 30 and 40 (inclusive), we use the area from a lower bound of 30 to an upper bound of 40 under a Normal curve with its center (average) at __ and a spread (standard deviation) of __ . The estimated probability is __