6.85 Family size in Gaza The Palestinian Central Bureau of Statistics (www.pcbs.gov.ps) asked mothers of age 20–24 about the ideal number of children. For those living on the Gaza Strip, the probability distribution is approximately P112 = 0.01, P122 = 0.10, P132 = 0.09, P142 = 0.31, P152 = 0.19, and P16 or more2 = 0.29. Because the last category is openended, it is not possible to calculate the mean exactly.

Explain why you can find the median of the distribution, and find it. (Source: Data from www.pcbs.gov.ps.)