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!
When can I put my child in the front seat? To keep them as safe as possible, children under 13 should ride in the rear seats, even if they have graduated from a booster seat to a seat belt. If a child must ride in the front seat, the vehicle seat must be moved back as far as possible. Caregivers should avoid putting car seats in the front passenger seat because of the presence of airbags. If the car only has two seats, caregivers should disable front passenger airbags before placing a child passenger seat in the front (check your vehicleâs ownerâs manual). This should only be used as a last resort.