{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

C1000__20[1]

# C1000__20[1] - Review Probability Random variables Binomial...

This preview shows pages 1–5. Sign up to view the full content.

1 Review Probability Random variables Binomial distribution

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
2 1. Event A occurs with probability 0.2. Event B occurs with probability 0.8. If A and B are disjoint (mutually exclusive) then (i) p(A and B)=0.16 (ii) p(A or B)=1 (iii) p(A and B)=1 (iv) p(A or B)=0.16 2. Ignoring twins and other multiple births, assume babies born at a hospital are independent events with probability that a baby is a boy and that a baby is a girl both equal to 0.5. The probability that the next 5 babies are girls is: (i) 1 (ii) 2.5 (iii) 0.25 (iv) 0.03125 (v) 0.5
3 3. In a certain town 50% of the households own a cellular phone, 40% own a pager and 20% own both a cellular phone and a pager. The proportion of households that own neither a cellular phone nor a pager is (i) 10% (ii) 30% (iii) 70% (iv) 90% 4. Event A occurs with probability 0.3 and event B occurs with probability 0.4. If A and B are independent, we may conclude that (i) p(A and B)=0.12 (ii) p(A|B)=0.3 (iii) p(B|A)=0.4 (iv) all of the above

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
4 5. Of all children in a juvenile court, the probability of coming from a low income family was .60; the
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern