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!
The laws can be very specific about what age, height, and weight a child must be to sit in a front seat. For example, in Colorado, where Brandi C. lives, children have to be 5 feet tall and 11 years old before they can ride in the front seat, she reports.Because each state is different, moms need to familiarize themselves with their own state's requirements.or example, in Colorado, where Brandi C. lives, children have to be 5 feet tall and 11 years old before they can ride in the front seat, she reports. Because each state is different, moms need to familiarize themselves with their own state's requirements.