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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.