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!
In California, drivers can be fined more than $475 and get a point on their driving records, therefore increasing insurance rates, if a child under the age of 8 is sitting in the front seat. However, there are some exemptions to the law, and a child under age 8 can ride in the front seat if: 1  There is no rear seat. 2  The rear seats are side-facing jump seats. 3  The rear seats are rear-facing seats. 4  The car seat or booster cannot be installed properly in the rear seat.