the head diameter of the largest sunflower on the mikhi plant is normally distributed with a mean of 142 mm and a standard deviation of 37 mm. A)what is the approximate percentage of largest sunflowers that will measure within 3 standard deviations of the mean? B) )what is the approximate percentage of largest sunflowers that will measure within 2 standard deviations of the mean? Show all work, if you use a calculator show what you typed in. Round all probabilities to 4 significant digits, z-scores to 2 decimals, x values to the same place value as the mean provided