In a particular city, the annual income of the population is normally distributed with a mean of $62000 and a standard deviation of $51219. What percentage of people earn less than $20000 per year? Select one: 20.90% 0 20.61% 20.33% 17.88% 6 In a particular city, the weight of newly born babies is normally distributed with a mean of 3.5 kg. If 94.95% of babies born weigh less than 4.812 kg, what is the standard deviation? Select one 800 grams 900 grams 754 grams 795 grams