An investigator for a nationally representative health survey is evaluating the heights and weights of men and women aged 18–74 years in the United States. The investigator finds that for each sex, the distribution of heights is well-fitted by a normal distribution. The distribution of weight is not normally distributed. Results are shown: Mean Standard deviation Height (inches), men 69 0.1 Height (inches), women 64 0.1 Weight (pounds), men 182 1.0 Weight (pounds), women 154 1.0 Based on these results, which of the following statements is most likely to be correct?
A86% of heights in women are likely to fall between 63.9 and 64.1 inches.
B99.7% of heights in women are likely to fall between 63.7 and 64.3 inches.
C68% of weights in women are likely to fall between 153 and 155 pounds.
D95% of heights in men are likely to fall between 68.85 and 69.15 inches.
E99.7% of heights in men are likely to fall between 68.8 and 69.2 inches.
A 1-year-old male presents to his pediatrician for a well-child visit. Through a history from the mother and physical examination, the pediatrician learns that the baby babbles non-specifically, takes several steps independently, and picks up his cereal using two fingers. His weight is currently 22 lbs (birth-weight 6 lbs, 9 oz), and his height is 30 inches (birth length 18 inches). Are there any aspects of this child's development that are delayed?
AFine motor skill delay
BLanguage delay
CInadequate growth
DGross motor skill delay
EThere are no developmental concerns
A 2-month-old is brought to the physician for a well-child examination. She was born at 39 weeks gestation via spontaneous vaginal delivery and is exclusively breastfed. She weighed 3,400 g (7 lb 8 oz) at birth. At the physician's office, she appears well. Her pulse is 136/min, the respirations are 41/min, and the blood pressure is 82/45 mm Hg. She weighs 5,200 g (11 lb 8 oz) and measures 57.5 cm (22.6 in) in length. The remainder of the physical examination is normal. Which of the following developmental milestones has this patient most likely met?
AReaches for objects
BStares at own hand
CSmiles in response to face
DAbsence of asymmetric tonic neck reflex
EMonosyllabic babble
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