6. According to the U.S. Bureau of the Census, the 2013 median personal earnings in the past 12 months were $22,063 for females and $35,228 for males, whereas the mean was $31,968 for females and $50,779 for males. (a) Does this suggest that the distribution of income for each gender is symmetric, or skewed to the right, or skewed to the left? Explain. (b) The results refer to 110 million females and 109 million males. Find the overall mean income.