PROBABILITY TUTORS

ANSWER IN 15 MINUTES

PART 1

K-S test, Shapiro Wilk, Histogram, skewness, and kurtosis are some of the methods for determining normalcy.

What if normalcy is shattered?

Use Spearman's Rho or Kendall's Tau-b as a starting point.

What exactly is the assumption of a bivariate normal distribution?

The values of Y should be fairly distributed for each value of X.

PART 2

Question:

The

number of newHIV diagnosesis declining, but about 44,000 people

were diagnosed with HIV in 2014. In total, approximately 1.2 million Americans

are living with HIV, and about 13 percent do not know they are infected. Nearly

7,000 people per year die from HIV and AIDS. Educating the population

aboutways to prevent HIV infection, from abstinence to correct use of

condoms to never sharing needles, continues to be important.

21 What

is the correct method of diagnosis of meningococcal septicaemia: cerebrospinal

fluid culture or blood culture?

22 Can

Escherichia coli 0157 be spread by foods other than meats?

23 I have

a question about a patient with brucellosis in whom, after 6 weeks of treatment

with 600 mg rifampicin +200 mg doxycycline, the agglutination test still shows

a 1/320 titre. If, after stopping the treatment, the patient begins to

experience identical symptoms as previously, how should treatment proceed? What

is the best laboratory test to show relapse?

24 Do

steroids have a role in the treatment of dengue haemorrhagic fever, in

particular to prevent the further fall in the platelet count?

25 Please

give me the mechanism of thrombocytopenia in dengue and malaria.

26 What

is the recommended procedure for the treatment of a case of dengue fever?

27 What

diseases can you get from tick bites?

28 Why

has severe acute respiratory syndrome (SARS) not spread as widely as was

predicted?

29 Please

explain the relation between recurrent typhoid fever and chronic carrier, and

the recommended treatment for both.

30 What

is the single most confirmatory diagnostic test for typhoid?