An insurance company selected samples of clients under 18 years of age and over 18 and recorded the number of accidents they had in the previous year. The results are shown below.

Under Age of 18 Over Age of 18
n=1,300 n=1,500
Number of accidents= 160 Number of accidents=120

We are interested in determining if the accident proportions differ between the two age groups. Find the pooled estimator of the population proportion.
a. 0.010
b. 0.100
c. 0.201
d. 0.207