John and Mark have each committed to charity each week for the next year. Their weekly incomes are independent of each other. Suppose the amount donated in a week by John is normally distributed with a mean of $34 and a standard deviation of $9, and the amount donated by Mark is also normally distributed with a mean of $44 and a standard deviation of $3. Estimate the number of weeks in a 52-week year that their combined donation will exceed $93?

The box plots show the distributions of the numbers of words per line in an essay printed in two different fonts.which measure of center would be best to compare the data sets? the median is the best measure because both distributions are left-skewed.the mean is the best measure because both distributions are left-skewed.the median is the best measure because both distributions are symmetric.the mean is the best measure because both distributions are symmetric