Cadres

Calculations by sample size

Midwives 70

$\frac{70}{163}\times 115=49$

Obstetricians 19

$\frac{19}{163}\times 115=13$

Senior house officers 37

$\frac{37}{163}\times 115=\text{26}$

Medical interns 28

$\frac{28}{163}\times 115=\text{27}$

TOTAL = 163

TOTAL = 115