For any population with mean Î¼and standard deviation.  The mean, or center of the sampling distribution of, is equal to the population mean Î¼:Î¼ x = Î¼.  The standard deviation of the sampling distribution is Ï/â n, where n is the sample size: Ï x = Ï / â n.
Usually a child should be 13 or older to ride in the front seat. If the child is too small then the front airbags can be dangerous and they may still need a booster seat. When â¦ they outgrow booster seats then they should be large enough to ride on the seat with just seatbelts. Always make sure they are buckled up!
What age can a child ride in the front seat of a car? That depends entirely upon your local rules of the road. In most places, it's age 10 over 4' tall and about 100 lbs inweight. That said, there are also entirely practical reaâ¦sons to consider,other than the rules.