Question 1: Question 2: The table below shows the number of male and female stud

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Question 1:

Question 2:

The table below shows the number of male and female students enrolled in nursing at a university for a certain semester. A student is selected at random. Complete parts (a) through (d). Nursing majors Non-nursing majors Total Males 99 1011 1110 1729 2429 Females 700 Total 2740 799 3539 (a) Find the probability that the student is male or a nursing major. ing male or being nursing major) (Round to the nearest thousandth as needed.) (b) Find the probability that the student is female or not a nursing major. P(being female or not being a nursing major) (Round to the nearest thousandth as needed.) (c) Find the probability that the student is not female or a nursing major P(not being female or being a nursing major) (Round to the nearest thousandth as needed.) (d) Are the events "being male" and "being a nursing major" mutually exclusive? Explain. O A. Yes, because one can't be male and a nursing major at the same time. O B. No, because there are 99 males majoring in nursing. o C. Yes, because there are 99 males majoring in nursing O D. No, because one can't be male and a nursing major at the same time.

Explanation / Answer

a|)probability =(799+1011)/3539=0.511

b)probability =(2429+1011)/3539=0.972

c)probability =(3539-700)/3539=0.802

d)option B is correct

question 1)

std error =std deviation/(n)1/2 =0.845

for 90% CI, z=1.6449

hence confidence interval =mean +/- z*std error =13.7 ; 16.5

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