1) The gestation period for human births can be taken as normally distributed wi

1)
The gestation period for human births can be
taken as normally distributed with a mean of 266 days and a standard deviation
of 16 days.If a gestation period is 276
days what percentile among human births is this?2)
A study is conducted to investigate body mass
index (BMI) in children living in urban neighborhoods. The following data are
collected. 29 26 24 32 30 22 27 28 31. Compute the median.3)
Suppose that the probability that a child living
in an urban area in the U.S. is obese is 20%. A social worker sees 15 Children
living in urban areas. What is the probability that none are obese?4)
The following table shows the numbers of
patients classified as underweight normal weight over weight and obese
according to their diabetes status.UnderweightNormal WeightOverweightObese
TotalDiabetes8346543150No Diabetes12859340230Total2011915883380What proportion of the diabetes is Obese.5)
The
following table shows the distribution of BMI in children living in U.S. and
European urban neighborhoods.NeighborhoodNormal weightoverweightobese
Total
U.S
1255040215
Europe
1014221164
Total
2269261379If a child is selected at randomA)
What is the probability they are overweightB)
What is the probability that a child living in a
U.S urban neighborhood is overweight6)
The total serum cholesterol level in women free
of cardiovascular disease is 205 with a standard deviation of 19.2. What
proportion of women have total serum cholesterol levels exceeding 200.7)
The data shown below describe children in 4
countries in terms of adequate dental careAdequate
Dental careInadequate Dental careTotalU.K
2539
1762715U.S.4563
2094772FRANCE1298
3071605MEXICO2874
2563130TOTAL11274
94812222What is the probability that a child from
France has adequate dental care.8)
Glucose levels in patients free of diabetes are
assumed to follow a normal distribution with a Mean of 120 and a Standard
deviation of 16. What proportion of patients has Glucose levels exceeding 115.