A binomial random variable is a discrete variable that can only. take whole numerical values. In contrast, a normal random variable is. a continuous variable that can take any numerical value. P. (. X. â¤ 10) for a binomial variable is P(. X. â¤ 10.5) using a normal approximation.
Height Requirements. A child must be at least 4 feet 9 inches tall and age 13 to safely ride in the front seat, according to the Centers for Disease Control and Prevention. If your child reaches this height but hasn't reached his eighth birthday yet, he still needs to sit in a booster in the backseat.
1 Some booster seats can be used for children up to 60 inches and 120 pounds. 2  Many state laws prefer that children 12 years and younger sit in the back seat if available. 3  Some states, as is the case in Michigan, forbid placing a child under the age of 4 years in a front seat if a rear seat is available. All children who are smaller than 150 cm (4 ft 11 in) and younger than 14 years old must use a booster or car seat appropriate to their weight. 2  A child must be either 14 years old or 4'11 to ride without a booster seat.