Given the following data, find the weight that represents the 71st percentile.
Weights of newborn babies: 7. 9, 7. 5, 6. 8, 7. 0, 6. 2, 8. 0, 7. 8, 6. 0, 7. 9, 7. 8, 7. 4, 7. 2, 5. 9, 5. 4, 7. 5
a) 7. 9
b) 7. 5
c) 7. 8
d) 7. 2