Write a computer program that takes in the truth values of propositions p a returns the truth values of the conjunction, disjunction, conditional, and bicondi- tional statements. turn in the printed script as well as examples of the program eval. uating all possible combinations of truth values for (p, q). 7.m. suppose x, y e z, and both x. y and x + y are even. show that x and y must both be even. (m is even iff m= 2.k for some k e z.) hint: write the contrapositive of this statement and prove that instead.

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

a is the correct