Most pools begin with the liner, and they can be made from vinyl 2 or fiberglass 3. The vinyl 2 is the least expensive with a standard cost of $25,700. The fiberglass 3 bump up the costs to $31,400 on average. There are also concrete and gunite 4 pools that require around $29,600 to $50,000 to install.
The average birth weight for babies is around 7.5 lb (3.5 kg) , although between 5.5 lb (2.5 kg) and 10 lb (4.5 kg) is considered normal. In general: 1  Boys are usually a little heavier than girls.
1 In a twin pregnancy. the average is 37 weeks. for triplets 34 and quadruplets 32 weeks.  The average birth weight for singletons is 7 lbs 7 oz. Average birth weight of twins is 5 lbs 5 oz. for triplets 4lbs and quads 3lbs. A difference in birth weight between multiples is not unusual.