A journalist wishes to collect new random sample with the aim of building a new confidence interval at the 95% confidence level for p. Using the Economist’s study as a basis, what sample size (n) would the journalist require to achieve a 6% margin of error?

How do you find p(a and b) if a and b are independent events for two or more actions, such as tossing a coin twice and finding p(heads and heads)? 2. how do you find p(a or b) if a and b are independent events for one action, such as spinning a four-color spinner once and finding p(red or blue)?