SECTION A

1. A nurse at your local hospital records the following table regarding patients seen on a given day with respect to blood type.

	BLOOD TYPE	TOTAL
A	B	AB	O
TOTALS	500	700	2000	4500	7,700

1. What is the probability of a patient having blood type B on this given day? [2 points]

700/7700 = 0.9090909 or 9.0%

1. What is the probability of a patient having blood type AB or O on this given day? [2 points]

2000 + 4500/7700 = 0.84415584 or 84.4%

1. About 70% of all inner city adolescents in CIty X have had at least one adverse childhood experience (ACE). For a randomly selected group of 4 adolescents, what is the probability of the following:
   1. Exactly four experienced at least one ACE [ 2 points]

1. At least one of the four adolescents experienced at least one ACE. [2 points]

1. If the heights of adolescents are normally distributed with a mean of 55 inches and a standard deviation of 12, what percentage of the adolescent's heights (in inches) would we expect to be:
   1. Between 40 and 75 [3 points]

1. Less than 45 [3 points]

1. The distribution of fasting glucose in women aged 20 - 30 years is approximately normally distributed with a
   

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