Question
a. Rolling a 5 or a number greater than 2. b. Rolling a 2 or an odd number. 13. The table shows the number of male and female students enrolled in nursing at the University of Oklahoma Health Sciences Center for a recent semester Non-nursing majors 1104 1693 2797 Total 1255 2709 3964 Nursing majors 151 1016 1167 Males Total Find the probability that a randomly selected student is a nursing major Find the probability that a randomly selected student is a male. Find the probability that a randomly selected student is a nursing major, given that the student is male Find the probability that a randomly selected student is a nursing major and female. a. b. c. d. 14. The manager of an accounting department wants to form a four-person committee from the 30employees in the department. In how many ways can she form this committee? 15. The board of directors of a company has 12 members. One member is the president, another is the vice-president, another is the secretary, and another is the treasurer. How many ways can these positions be assigned? 16. The number of school-related extracurricular activities per student is shown below. Activities 0 1 2 3 4 5 6 7 Probability 059 122 163 178 213 128 084 053 Find the mean and the standard deviation for this probability distribution 17. A surgical technique is perform ed on seven patients. You are told there is a 70% chance of success. Find the probability that the surgery is successful for a. Exactly five patients b. At least four patients.
Explanation / Answer
As per the guidelines, answering you the 13th question
P(E) = Favourable / Total
(a) nursing major = 1167
total = 3964
p(E) = 1167 / 3964
(b) male = 1255
P(E) = 1255 / 3964
(c) male nursing major = 151
P(E) = 151 / 3964
(d) Female nursing major = 1016
P(E) = 1016 / 3964
